Question: Who is the paternal grandmother of Princess Theodora Of Greece And Denmark (1906–1969)?
Sentence (from "Prince Andrew of Greece and Denmark"): Prince Andrew of Greece and Denmark (– 3 December 1944) of the House of Schleswig-Holstein-Sonderburg-Glücksburg, was the seventh child and fourth son of King George I of Greece and Olga Constantinovna of Russia.
Relevant evidence: Yes