Heinrich von Hannover was born on 29 April 1961 in Hannover, Lower Saxony, Germany. He has been married to Thyra von Westernhagen since 19 June 1999. They have three children.
Children: Albert Thilo Ludwig Arndt (b. December 14th 1999 in Göttingen), Eugenia Friederike (b. July 19th 2001 in Göttingen) and Julius Eduard Emanuel (b. February 22sd 2006 in Göttingen), as well as Oscar Julius Heinrich Ferdinand Nick (b. September 29th 1996 in Berlin) by former girlfriend Désirée Nick.