Hill Prince [SEP] father
later became a moderately successful breeding stallion.
Background.
Hill Prince was a bay horse sired by Princequillo, a leading racehorse who became a highly successful breeding stallion. Hill Prince was one of his first crop of foals. His dam Hildene went on to produce First Landing, the American Champion Two-Year-Old Colt of 1958. The colt was bred in at his owner Christopher Chenery's Meadow Farm stud near Doswell, Virginia. Hill Prince was trained for Chenery by J. H. "Casey" Hayes.
father he is second cousin of Princess Beatrix of the Netherlands.
Marriage.
Friedrich Wilhelm married on 18 Sep 1991 in Munich to Andrea Messner (b. 1966), daughter of Günther Messner, and his wife, Lieselotte Trzoska. 
They had three daughters:
- Catharina (b. 20 September 1991)
- Marie Christine (b. 25 August 1996)
- Sophie (b. 5 February 2002)
House of Lippe.
On 30 December 1949 his father's first cousin Prince Armin succeeded his father Leopold