Demyan Glebovich of Beloozero was born 1 July 1263 to Gleb Vasilkovich of Beloozero (1237-1278) and Feodora Sartakovna (c1240-1273) and died 1270 of unspecified causes. Charlemagne (747-814), Alfred the Great (849-899)/s, Charlemagne (747-814)/s, Rollo of Normandy (860-932)/s.
According to some genealogies, ha was called Demyan-Vasili or simply Vasili. He is Known only from genealogies. He died, childless, most likely a minor, before 1277: it can be assumed from the fact that his father, going to the Golden Horde, took with him his son Mikhail, while his eldest son, prince Demyan, is not mentioned any more.
|Demyan Glebovich of Beloozero (1263-c1270)||1 July 1263||1270|
|Mikhail Glebovich of Beloozero (1263-1293)||1263||1293||Younger Daughter of Fyodor Rostislavich (c1263-c1315)|
|Mariya Glebovna of Beloozero (c1264-c1300)||1264||1300||Daniil Aleksandrovich of Moscow (1261-1303)|
|Vasili Glebovich of Beloozero c1267-1283)||1267||1283|