Question: Who is the paternal grandmother of Alexios Komnenos (Co-Emperor)?
Sentence (from "Alexios Komnenos (co-emperor)"): He was born in February 1106 at Balabista (today "Sidirokastro") in Macedonia, was made co-emperor with his father at 16 or 17 years of age and died on 2 August 1142 at Attalia, Pamphylia.
Relevant evidence: No