1) Byzantine court title 
Basileopatōr (βασιλεοπάτωρ, literally `father of the basileus [emperor]`) was one of the highest secular titles of the Byzantine Empire. It was an exceptional post (the 899 Klētorologion of Philotheos lists it as one of the `special dignities`),{sfn|Bury|1911|p=114} and conferred only twice in the Empire`s history. Its holder wa...