Question: Who is Demetrios Palaiologos (Son Of Andronikos Ii)'s maternal grandfather?
Sentence (from "Demetrios Palaiologos (son of Andronikos II)"): Demetrios Angelos Doukas Palaiologos (ca. 1297 – after 1343) was a son of the Byzantine Emperor Andronikos II Palaiologos (reigned 1282–1328) and his second wife, Irene of Montferrat.
Relevant evidence: Yes