Died before October 1345. He had a brother. His property is mentioned in the boundary description of the Monastery Soter Christos Gastilenkus from 1339/1342 (καὶ ἀπαγούσης εἰς τὸν κάπεστον τῆς γῆς τοῦ Λάσκαρη). He possessed a manor in the village Lenginion, three winter watermills, a paroikos in the village Melenikitzion with houses and old village Protoknetze and Belidolo. The Serbian King Stefan Uroš IV Dušan donated in October 1345 his estates to the Monastery of Saint John Prodromos near Serres (εἰς τὸ χωρίον τὸ Λεγγίνιον τὴν οἰκονομίαν τοῦ Λάσκαρη ἐκείνου μετὰ τοῦ ζευγηλατείου τοῦ κατεχομένου παρὰ τοῦ Καντακουζηνοῦ καὶ τῶν ἐν αὐτῆ τριῶν χειμερινῶν ὑδρομυλώνων καὶ τοῦ εἰς τὸ χωρίον τὸ Μελενικίτζιον παροίκου καὶ τῶν οἰκημάτων καὶ τῆς ἑτέρας γῆς ἣν εἶχεν ὁ ῥηθεὶς Λάσκαρης μετὰ τοῦ ἀδελφοῦ αὐτοῦ ἐν διαφόροις τόποις, καὶ τοῦ παλαιοχωρίου τοῦ λεγομένου Πρωτοκνέτζη, καὶ τοῦ Βελιδόλου καὶ τῶν ἐκεῖ δύο μυλώνων καθὰ προκατείχοντο καὶ παρὰ τοῦ ἐπὶ τοῦ κανικλείου ἐκείνου).