Constantine Laskaris sibling Isaac Laskaris
Family
Constantine had six brothers: Manuel Laskaris (died after 1256), Michael Laskaris (died 1261/1271), Georgios Laskaris, Theodore, Alexios Laskaris, and Isaac Laskaris. The last two fought with the Latin Empire against Theodore Laskaris' successor, John III Doukas Vatatzes, and were imprisoned and blinded.According to "The Latins in the Levant. A History of Frankish Greece (1204–1566)" by William Miller, the seven brothers may also have had a sister, the wife of Marco I Sanudo and mother of Angelo Sanudo. He based this theory on his own interpretation of Italian chronicles. However, the Dictionnaire historique et Généalogique des grandes familles de Grèce, d'Albanie et de Constantinople (1983) by Mihail-Dimitri Sturdza rejected the theory based on the silence of Byzantine primary sources.
brother or sister kin