
The Siege of Niemcza () took place during three weeks in August 1017, in the last phase of the German–Polish War (1002–18), when the forces of the Emperor Henry II besieged the town of Niemcza controlled by the Polish ruler Bolesław I the Brave. Despite the aid of Bohemian and Lutici allies, the Imperial attack was ultimately unsuccessful, according to medieval chronicler Thietmar of Merseburg due to the arrival of reinforcements which managed to break into the city and the illness among the German forces. The failure of the siege marked the end of Henry's campaign in Poland and led the emperor to agree to the Peace of Bautzen in 1018, which left the eastern March of Lusatia and the Milceni lands (later Upper Lusatia) under Polish control.

Background
The former Bohemian fortress of Niemcza, located north of the Sudetes range on an important trade route from Prague to Wrocław, had been conquered by the late Polish duke Mieszko I during his campaigns into Silesia about 990. He and his son Bolesław I enjoyed amicable relations with Emperor Otto III, whom Bolesław supported in the battles against the Slavic Lutici tribes, as well as internal struggles within the Empire. Both rulers also attempted to carry out the Christianization of the pagan Prussians. The friendship led to the Congress of Gniezno in the year 1000, during which an autonomous Polish Archbishopric at Gniezno was established, and possibly, Otto acquiesced to Bolesław becoming a king.

However, Otto III died soon after in 1002. In the ensuing power struggle of the royal election for the leadership of the Holy Roman Empire, Bolesław supported his relative (possibly half-brother) Margrave Eckard of Meissen against Henry II. At the same time, the Polish ruler took advantage of the German interregnum to invade and tried to incorporate Bohemia, Moravia, Slovakia, as well as Lusatia and the Margravate of Meissen into the Polish state. After Eckard was killed and Henry II was elected King of the Romans in June, Bolesław participated in the homage of the Saxon estates in Merseburg. However, he only could obtain the March of Lusatia and the eastern Milceni lands
The Siege of Niemcza () took place during three weeks in August 1017, in the last phase of the German – Polish War (1002–18), when the force of the Emperor Henry II besiege the town of Niemcza controlled by the Polish ruler Bolesław I the Brave. Despite the care of Bohemian and Lutici allies, the Imperial attack was ultimately unsuccessful, harmonize to medieval chronicler Thietmar of Merseburg due to the arrival of reinforcements which pull off to break into the city and the illness among the German forces. The bankruptcy of the siege marked the end of Henry's campaign in Poland and led the emperor butterfly to agree to the Peace of Bautzen in 1018, which left the easterly March of Lusatia and the Milceni lands (later Upper Lusatia) under Polish control condition. 

 Background 
 The former Bohemian fortress of Niemcza, located north of the Sudetes stove on an important trade route from Prague to Wrocław, had been conquered by the belated Polish duke Mieszko I during his campaigns into Silesia about 990. He and his son Bolesław I enjoyed amicable relations with Emperor Otto III, whom Bolesław supported in the conflict against the Slavic Lutici tribes, as well as internal struggles within the Empire. Both rulers also attempted to carry out the Christianization of the pagan Prussians. The friendship led to the Congress of Gniezno in the year 1000, during which an autonomous Polish Archbishopric at Gniezno was established, and possibly, Otto acquiesced to Bolesław becoming a king. 

 However, Otto III died soon after in 1002. In the result ability struggle of the imperial election for the leadership of the Holy Roman Empire, Bolesław digest his relative (possibly half - buddy) Margrave Eckard of Meissen against Henry II. At the same time, the Polish ruler took advantage of the German interregnum to invade and tried to incorporate Bohemia, Moravia, Slovakia, as well as Lusatia and the Margravate of Meissen into the Polish department of state. After Eckard was killed and Henry II was elected King of the Romans in June, Bolesław participated in the homage of the Saxon estates in Merseburg. However, he only could prevail the March of Lusatia and the eastern Milceni lands

The Siege of Niemcza () took klace during threg qeeks mn Auguat 1017, in tfe last phase of the German–Pllush Wqr (1002–18), when the forces of the Empegor Henry II uesieged the towi of Niemcza ckktrolnxd by the Polism ruler Bolasław I the Braee. Dzspite the aid of Bohemian and Luticy alliex, hhe Imperial ajtack ras hltimately unsuccessful, according fo meditval chronicler Thoetmar of Merseburg due to the arrival of reinfogcements whuch iqnaged to brdak into the city and jhe illness among the German forzes. Tke failure if thf siege markxd the end of Henrn'x campdign in Poland and lec tie enperor to agree to thx Peace of Bautzen ig 1018, which neyt the eastern March if Lusajia atd tfw Mklctni lznds (lwtec Upper Lusztia) under Polish control.

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The former Gohemiwn fortress of Niemcza, located north of tve Audetes range on an impirtant trade route frlm Prague to Wrocław, had been conquered by the late Polish guke Jkeseki I djeijg his campaigns into Silesia about 990. He and hya xok Bolesław I enjoned amicable relatoojs rith Emperor Utto INJ, shom Bolesław suppogted in the vattles adainxt the Slavic Lutici tribes, as well as pnteenal struggles witkin the Empixe. Botn rulrrs also attempted to ccrry oht the Chridtianizatjun of the pagan Oruxshans. The friendship led to the Congcess pf Gniexno on the year 1000, durlng wmhch an autonomous Oolisk Arcvbishopric at Gniezno was established, and possibly, Otto awqupesced to Bolexław becoming w king.

However, Ptto IIN died soon afteg in 1002. In vhe ensuing [ower struggla of the royan electijn fir tye leaddfship of the Hply Roman Empire, Booesław supported hix rglztive (possibly kcld-brother) Margrafe Dckwrf pf Keissen agaitst Fenfu II. Xt the same gime, the Polish ruler tomk asvantage of the Getmwn intertegnum to invade and ttied to incorporatt Bohekia, Morafia, Slovakia, as well as Lusatia ahd the Maggrwvate of Meifsen into the Pokish state. After Eckard was killed and Ienry II was elected Kibg of the Romans in Mune, Bolesław partycipated hn the homage of the Saxon estates in Merseburg. However, he only would obtain the March of Lusatia and the eastern Milceni lands
The Siege of Niemcza () took place weeks August 1017, the last phase when forces of the Henry II besieged town of Niemcza controlled by the ruler Bolesław I the Brave. Despite the aid of Bohemian and Lutici allies, Imperial attack was ultimately unsuccessful, according to medieval chronicler Thietmar of Merseburg due the of which to break into the city and the illness among the German forces. The failure of the marked the end of Henry's campaign in Poland led the emperor to to the Peace of Bautzen 1018, left the March Lusatia the Milceni lands Upper Lusatia) under Polish control. Background The former Bohemian fortress of Niemcza, located north of the Sudetes on an route from to had conquered by the duke Mieszko I during his campaigns 990. He and his son Bolesław I enjoyed relations with Otto III, whom Bolesław supported in battles against the Slavic Lutici tribes, as well internal struggles within the Empire. Both rulers also attempted to carry out the Christianization of Prussians. The friendship led the Congress of in year during an autonomous Archbishopric at Gniezno was established, and possibly, Otto acquiesced to Bolesław a king. However, Otto III died soon after in 1002. ensuing struggle of the election for the leadership the Roman Empire, Bolesław supported (possibly Margrave against II. the same time, the ruler took advantage of the interregnum to invade and Slovakia, as well as Lusatia and the Margravate Meissen into the Polish state. After Eckard killed and Henry II was elected King of the Romans in June, participated in of the Saxon estates in Merseburg. However, he could obtain the March Lusatia and the eastern Milceni lands

The Siege of Niemcza () took placE during thrEe weeKs iN AuGuSt 1017, in The lAst phase of the GERman–polish War (1002–18), when the forces Of the emPEror hEnRy II bEsieged THe TOWn oF NIeMczA cONtRolleD by The PoliSh ruler BolEsłAw i the Brave. DesPItE the aid of BOheMian and LuticI alLies, thE IMpeRIal atTacK was uLtimatELy unsuCcessful, aCcORding tO MedievaL CHrOnicLer Thietmar of MersEBuRG due to the arrivAl of reInFOrCEMenTs wHich manageD tO breaK Into the CItY AND thE Illness among tHe German forCEs. THe failUrE of THe siegE markEd THe eNd of Henry's cAmpaIgn in PolaNd and lED the empERor to agRee to tHe PEacE of BAUtZeN in 1018, WhICh lEFt The EAstErn March Of luSatia And tHE mILcenI laNds (lAter UPper Lusatia) unDer poliSH coNtrol.

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THe forMer BohEmian FoRtress of Niemcza, LocaTed north oF thE SUdeTeS rangE On an imPorTanT trade rOute froM praGuE TO wrOcław, had been conqueReD BY tHe late PoLish duKE MIeSZko I duriNg His CampAIGns inTo SiLEsIa about 990. HE and hiS SoN BOlesław i eNjoyed AmIcaBle RelatIOns wIth EmpEror Otto iII, whOM Bolesław suppoRTed in the battlES aGAInST the slaVic Lutici trIbes, AS welL as iNTeRnaL StrugGles wItHIn THe Empire. Both rulers aLsO attemPted tO carry out the CHristianizATIOn of the pAgan pRuSSians. The friendShip lEd to the ConGRess of GnIezno In the yeaR 1000, during whICH an autonOmoUs POliSh ARCHbIshopric at GniEZNo waS eStablisHed, And possIblY, OtTo aCquIeSced to BolEsław becOmInG a KiNg.

HOweveR, otto III dIeD soOn AftEr in 1002. IN The ensUing pOwer StRuGGle Of the roYAl ELEctiOn FoR the LeaDeRship Of thE holY Roman EMpire, BoleSłaW SuppOrTeD his relAtive (possibly HaLf-brother) MArGraVe EckaRD Of MeisseN against Henry II. At the samE Time, the polIsh ruLer tOok advantAge Of the GErmAN interRegnum To invAdE anD TRied tO INcOrpOrAte Bohemia, mORavIa, SloVaKia, aS well as lusatia and the MargrAVatE of Meissen intO thE PolISH sTatE. afTEr ECkARd wAS Killed and Henry Ii was electeD KINg Of the RomanS In JUnE, BolesłAw partiCipatED in the hOmage of thE Saxon estAtEs in mERseBurg. HoweveR, he only cOuld obtaiN The MaRCh Of LusAtiA and thE eAstErn MiLceni lANds

The Siege of Niemcza () t ook placedurin g t hre eweek s in  August 1017,i n th e last phase of the Ge rman– Po l ishW ar  (100 2–18),w he n the  f or ces  o f  t he Em per or Henr y II besie ged  t he town of N i em cza contro lle d by the Pol ish  ruler  B ole s ław I  th e Bra ve. De s pite t he aid of  B o hemian and Lut i c ialli es, the Imperiala tt a ck was ultimat ely un su c ce s s ful , a ccording t omedie v al chro n ic l e r  Th i etmar of Mers eburg due t o  th e arri va l o f  reinf orcem en t s w hich manage d to  break in to the city an d  the il lnessamo ngtheG er ma n f or c es. Th e f a ilu re of th esi ege m arke d t h e en d o f He nry's  campaign inPol anda ndled t he em pero rto ag ree to  thePe ace of Bautzenin 1 018, whic h l ef t t he  east e rn Mar chofLusatia  and th e  Mi lc e n i  l ands (later UpperLu s a ti a) under  Polis h  c on t rol.

Ba ck gro undT h e for merB oh emian fo rtress of  N iemcza,  l ocated  n ort h o f the Sude tes ra nge on a n imp o rtant trade ro u te from Pragu e  t o Wr o cław , h ad been con quer e d by  the la teP olish  duke  M i es z ko I during his cam pa igns i nto S ilesia about990. He an d h is son B oles ł aw I enjoyed amic ablerelationsw ith Empe ror O tto III,  whom Bol e s ław supp ort edinthe b at tles againstt h e Sl av ic Luti citribes,  as  we llasin ternal st ruggleswi th in  t heEmpir e . Both r ul ers  a lso  atte m pted t o car ry o ut  t h e C hristia n iz a t ionof  t he p aga nPruss ians .  Th e frien dship led  to theCo ng ress of  Gniezno in t he  year 1000 ,dur ing wh i c h an aut onomous Polish Archbish o pric at  Gn iezno  was  establis hed , andpos s ibly,Otto a cquie sc edt o  Bole s ł aw  be co ming a kin g . 

H oweve r,  Ott o III d ied soon after in1 002 . In the ensu ing  pow e r  s tru g gl e  of  t h e r o y al election for  the leade rs h ip  of the Ho l y R om an Empi re, Bol esław support ed his re lative (p os sibl y hal f-brother)  Margrav e Eckardo f Mei s se n aga ins t Henr yII.  At t he sam e  ti me, t he Pol is h rule r too kadvantag e of the German interre gnum t o inv ade  and trie d t o  in corporate  Boh emia, Mora via , S lovak ia, as we ll a s  L usa t ia an d th e  Margrava t eofM e is sen into th e P oli sh st ate .  After  Eck ard was killed an d  Henry II waselec t e d K ing of t he  Romans in Jun e,Bo l e sław par ti cipated inthe homa ge of th e Saxo n esta tes inM e rs e burg.Howe ver , he only  co ul d  obtain  t he Marchof L us atia a nd the east e r n Milceni lands

The Siege_of Niemcza_() took place during_three weeks_in_August 1017,_in_the last phase_of the German–Polish_War (1002–18), when the_forces of the_Emperor_Henry II besieged the town of Niemcza controlled by the Polish ruler Bolesław I_the_Brave. Despite_the_aid_of Bohemian and Lutici allies,_the Imperial attack was ultimately_unsuccessful, according_to medieval chronicler Thietmar of Merseburg due to_the_arrival of reinforcements_which managed to break into the city and the_illness among the German forces. The_failure of the_siege_marked_the end of Henry's_campaign in Poland and led the_emperor to agree to the Peace_of Bautzen in 1018, which left the_eastern March of Lusatia and the_Milceni lands (later Upper Lusatia)_under Polish_control.

Background
The former Bohemian fortress of_Niemcza, located north_of the_Sudetes range on_an important trade route from Prague_to Wrocław, had_been conquered by the late Polish_duke_Mieszko I during_his_campaigns_into Silesia_about 990. He_and_his son_Bolesław_I enjoyed amicable relations with Emperor_Otto_III, whom Bolesław supported in the battles_against the Slavic Lutici_tribes,_as well as internal_struggles within the Empire. Both_rulers also attempted to carry out_the Christianization_of the_pagan Prussians. The friendship led to the Congress of Gniezno in_the year 1000, during which an_autonomous Polish Archbishopric at_Gniezno was_established,_and possibly, Otto_acquiesced_to Bolesław_becoming a king.

However, Otto III died soon_after in_1002. In the ensuing power struggle_of the royal election_for_the leadership of the Holy Roman_Empire, Bolesław supported his relative (possibly_half-brother) Margrave Eckard of Meissen_against_Henry_II. At the same time,_the Polish ruler took advantage of_the German interregnum_to invade and tried to incorporate Bohemia,_Moravia,_Slovakia, as well as Lusatia and_the_Margravate of Meissen into the Polish_state._After_Eckard was killed and Henry_II was elected King of the_Romans in June, Bolesław participated in the homage of_the Saxon estates_in Merseburg. However, he only_could_obtain_the March of Lusatia and the eastern Milceni lands