leaders in the 10th-century Holy Roman Empire Holy Roman Empire, Kingdom of Germany (complete list, complete list) – Louis the Child, King (899–911) Conrad I, King (911–918) Henry I, King (919–936) Otto I, King (936–973), Holy Roman Emperor (962–973) Otto II, King (961–983), Holy Roman Emperor (967–983) Otto III, King (983–1002), Holy Roman Emperor (996–1002) Hungary Principality of Hungary (complete list) – Árpád, Grand Prince (c.895–c.907) Zoltán, Grand Prince (c.907–c.948) Fajsz, Grand Prince (c. 948) Taksony, Grand Prince (c.955–c.973) Géza, Grand Prince (c.973–997) Stephen I, Grand Prince (997–1000), King (1000–1038) Moravia Great Moravia (complete list) – Mojmír II, Duke (894–906) Poland Civitas Schinesghe (complete list) – Lestek, Duke (early 10th century) Siemomysł, Duke (mid–10th century) Mieszko I, Duke (960–992) Bolesław I, Duke (992–1025), King (1025) Kingdom of Poland (1025–1385) (complete list) – Bolesław I the Brave, Duke (992–1025), King (1025) Europe: East Volga Bulgaria (complete list) – Almış, Emir (895–925) Mikail bine Cäğfär, ruler (925–943) Äxmäd bine Cäğfär, ruler (943–950) Abdulla bine Mikail, ruler (950–970) Talib bine Äxmäd, ruler (970–976) Mö'min bine Äxmäd, ruler (976–980) Abd ar-Rahman bine Mö'min, ruler (980–1006) Khazar Khaganate (complete list) – Aaron I, ruler (c.900) Menahem, ruler (early 10th-century) Benjamin, ruler (c.920) Aaron II, ruler (late 920s–940) Joseph, ruler (940–965) David of Taman, ruler (c.986–988) Georgius Tzul, ruler (?–1016) Kievan Rus' (complete list) – Oleg of Novgorod, Prince (882–912) Igor I, Prince (912–945) Olga, Regent, Consort (945–962) Sviatoslav I, Prince (962–972) Yaropolk I, Prince (972–980) Vladimir I the Great, Grand Prince (980–1015) Novgorod (complete list) – Oleg of Novgorod (879–912) Europe: Nordic Denmark Denmark (complete list) – Harthacnut I, King (early–10th century) Gorm the Old, King (c. 936–c. 958) Harald Bluetooth, King (c.958–c.986) Sweyn Forkbeard, King (986–1014) Norway Kingdom of Norway (872–1397) (complete list) – Harald Fairhair, King (c.872–930) Eric Bloodaxe, King (c.929–934) Haakon I the Good, King (c.934–960) Harald II Greycloak, King (c.961–970) Harald Bluetooth, King (c.970–985/986) Haakon Sigurdsson, de facto ruler (c.975–995) Olaf Tryggvason, King (995–1000) Sweyn Forkbeard, King (c.985–995, 1000–1014) Sweden Sweden: Proto-historic (complete list) – Ring of Sweden, King (c.910–940) Erik Ringsson, King (c.940–950) Emund Eriksson, King (mid–10th century) Björn Eriksson, King (late 10th century) Olof Björnsson, King (late 10th century) Sweden (800–1521) (complete list) – Eric the Victorious, King (c.970–c.995) Olof Skötkonung, King (c.995–1022) Europe: Southcentral Holy Roman Empire in Italy See also List of state leaders in the 10th-century Holy Roman Empire#Italy Kingdom of Italy (complete list) – Integrum: