around 1230: Birth of Constantine Palaiologos
1259: Constantine receives the title of caesar 
1259: Marriage with Eirene, daughter of general Branas 
1259: Battle of Pelagonia; he receives the title of sebatokrator 
1262: Operations of Constantine as head of the Byzantine army in Peloponnesus 
before 1275: Constantine dies as a monk with the name Kallinikos