Konstantinos Lascaris, duke of Thrakesion

Duke of Thrace

Theodoros I Komnenos Laskaris, Emperor of Nicaea 1204-1222, son of Manuel Laskaris and Ioanna (Karatzas, Phokaina), born circa 1175, died August 1222, married 1219 Marie de Courtenay, born 1204, died September 1222. His second marriage, to Philippa of Armenia, was annulled after one year on religious grounds. The son born from this marriage, Konstantinos, had no rights to the throne but instead became Duke of Thrakesion.

Costantino Lascaris (nato 1214), che divenne duca di Tracia.

https://it.wikipedia.org/wiki/Teodoro_I_Lascaris “Theodore repudiated Philippa for an unknown reason and disinherited her son.[68] According to Angold, Theodore was informed only after the marriage that his wife was not Leo's daughter.[83] Her son must have been born in 1214, because he was not yet eight years old when Theodore died.[96]”

http://fmg.ac/Projects/MedLands/NIKAIA.htm#EvdokiaLaskarinadied1277

Emperor Theodoros I & his second wife had one child:

6. KONSTANTINOS Laskaris (1215-). The Lignages d'Outremer name "Costans qui fu mort" as son of "Lascre" and his wife "Phelippe" daughter of "Rupin de la Montaigne qui estoit seignor d'Ermenie"[83]. Georgius Akropolites records that "ex Armenia filius unicus" was eight years old when his father died[84]. He was deprived of his rights to the throne. [Dux of Thrakesion 1249.]

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