Frederick William, Grand Duke of Mecklenburg and Princess Augusta of Cambridge.
Adolphus Frederick - Source picture: Wikipedia
On April 17th. 1877 he married Princess Elisabeth of Anhalt in Dessau.
They had 4 children.
In January 1914, Adolphus Frederick, Grand Duke of Mecklenburg-Strelitz
was mentioned as the second richest person in Germany after
Emperor William II.
He died on June 11th. 1914 in Berlin.