Question: Who is Prince Heinrich Xxxiii Reuss Of Köstritz's maternal grandfather?
Sentence (from "Princess Marie Alexandrine of Saxe-Weimar-Eisenach"): 20 January 1849 – 6 May 1922) was the eldest daughter and second child of Charles Alexander, Grand Duke of Saxe-Weimar-Eisenach and his wife Princess Sophie of the Netherlands.
Relevant evidence: Yes