 Nyora kupfuurira kweiyi ndima - Constantine akafa sezvingabvira c. Nhamba 1211. Theodore I, ane vana Nikolaos naJohn vakafa c. 1212, akatsiviwa muna 1222 nomukwasha wake, John III Doukas Vatatzes, uyo akanga aroora Irene Laskarina. Vatatzes aifanira kurwisa vaikwikwidzana naIsaac naAlexios, vakoma vaTheodore I, avo vakanga vatizira kuUmambo hweLatin ndokutsvaka rubatsiro. Vatatzes anokunda paPoemanenummuna 1224 zvisinei kwakanga kwakasimba: kwakasimbisa nzvimbo yake amene uye kwakazivisa kurwisa kwenguva refu uye kunobudirira kweNicaean mukurwisana nezvitoro zvechiLatin. Vatatzes akafa muna 1254, achisiya mwanakomana wake, Theodore II Laskaris pachigaro. Akafa muna 1258, achisiya mwanakomana wake muduku John IV Laskaris pachigaro choumambo. Boka revakuru-vakuru rakanga rakapoteredza Michael Palaiologos rakabva ratora masimba kubva kuna George Mouzalon wechiLaskarid mutsigiri wehurumende, uye vakagadza Palaiologos semutongi uye, pakupedzisira, semutongi-mumwe. Pashure pokunge Constantinople yatorwazve muna 1261, Palaiologos akagadzwa samambo ari oga, nepo John IV akaregeredzwa. Pasina nguva, akapofumadzwa uye akaramba ari mujeri kusvikira paakazofa muna 1305. 