Frederick William was a German sovereign who ruled over the state of Mecklenburg-Strelitz as grand duke from 1860 until his death. Wikipedia
Born: October 17, 1819, Neustrelitz, Germany
Died: May 30, 1904 (age 84 years), Neustrelitz, Germany
Great grandchildren: Prince Ernst August of Lippe, Countess Marie Jametel, Elizabeth Caroline zur Lippe-Biesterfeld, and more
Grandchildren: Adolphus Frederick VI, Duchess Marie of Mecklenburg, Duchess Jutta of Mecklenburg-Strelitz, and more