Question: Which country Duchess Helene Of Mecklenburg-Strelitz's husband is from?
Sentence (from "Duchess Helene of Mecklenburg-Strelitz"): Duchess Helene of Mecklenburg-Strelitz (16 January 1857 – 28 August 1936) was a daughter of Duke Georg August of Mecklenburg-Strelitz and his wife, Grand Duchess Catherine Mikhailovna of Russia.
Relevant evidence: No