Question: Who is Maria-Irene Palaiologina's paternal grandmother?
Sentence (from "Andronikos III Palaiologos"): Andronikos III Palaiologos (25 March 1297 – 15 June 1341), commonly Latinized as Andronicus III Palaeologus, was the Byzantine emperor from 1328 to 1341.
Relevant evidence: No