Question: Who is Prince Alexander Ferdinand Of Prussia's maternal grandmother?
Sentence (from "Prince Alexander Ferdinand of Prussia"): Prince Alexander of Prussia (Alexander Ferdinand Albrecht Achilles Wilhelm Joseph Viktor Karl Feodor; 26 December 1912 – 12 June 1985) was the only son of Prince August Wilhelm of Prussia and his wife Princess Alexandra Victoria of Schleswig-Holstein-Sonderburg-Glücksburg.
Relevant evidence: Yes