Question: Who is the paternal grandmother of Theodora Palaiologina, Empress Of Bulgaria?
Sentence (from "Michael IX Palaiologos"): Michael IX Palaiologos or Palaeologus ("Mikhaēl IX Palaiologos"), (17 April 1277 – 12 October 1320, Thessalonica, reigned as Byzantine co-emperor with full imperial style 1294/1295–1320.
Relevant evidence: No