Question: Which country Duchess Helene Of Mecklenburg-Strelitz's husband is from?
Sentence (from "Prince Albert of Saxe-Altenburg"): (Albert Heinrich Joseph Carl Viktor Georg Friedrich; Munich, 14 April 1843 – Serrahn, 22 May 1902) was a German prince of the ducal house of Saxe-Altenburg.
Relevant evidence: Yes