Question: Who is the maternal grandmother of Duke Georg Alexander Of Mecklenburg-Strelitz?
Sentence (from "Duke Georg Alexander of Mecklenburg-Strelitz"): His four children received the title of Counts of Carlow, but after Duke Georg Alexander's death, his unmarried brother adopted his son Georg, Count of Carlow, who became the heir to the House of Mecklenburg-Strelitz in 1934.
Relevant evidence: No