Oberkassel (now Germany).
Leopold IV, Prince of Lippe - Source picture: Wikipedia
He was the son of Ernest II, Count of Lippe-Biesterfeld and Countess Karoline of Wartensleben.
He married 1/ Princess Bertha of Hesse-Philippsthal-Barchfeld on August 16th. 1901 in Rotenburg.
They had 5 children.
Leopold IV married 2/ Princess Anna of Ysenburg and Büdingen. They had 1 child.
Leopold IV died on December 30th. 1949 in Detmold.