He was the son of Prince Friedrich Leopold of Prussia and Princess Louise Sophie of Schleswig-Holstein-Sonderburg-Augustenburg, married in 1916. At Glenicke Castle, Prince Joachim Viktor Wilhelm Leopold Friedrich Sigismund was born to Prince Friedrich Leopold of Prussia and his wife Princess Louise Sophie of Schleswig-Holstein-Sonderburg-Augustenburg on 17 December 1891.
Like some other Hohenzollerns like Prince Heinrich of Prussia, Friedrich was greatly interested in aviation. In 1911, he began building an aeroplane at Glenicke Castle, with the hopes of trying it out the following spring. The couple spent most of their time raising and training horses at their Mecklenburg estate, as well as at their estate at Glienicke Castle near Potsdam.
On 5 July 1927 at age 35 at Lucerne, Switzerland, Frederich Sigismund fell from a horse.
He was riding in an international tournament. While doing a difficult jump, he fell and his foot got caught in a stirrup.
Before he was able to free himself, the horse trod his chest multiple times, breaking five ribs and causing other injuries. He was rushed to a nearby hospital, where he died the following day from his injuries.
His body was brought back to Potsdam, where a ceremonial funeral was held.
1. Garderegiment zu Fuß (1st Regiment of Foot Guards), Leutnant à la suite from 1901. Leutnant by 1908. 2. Leib-Husaren-Regiment Königin Viktoria von Preußen Near
2, Rittmeister (captain of cavalry), during World War One Fliegerabteilung 22 (aerial observer squadron), 1917–1918 Knight, First Class, Prussian Crown Order, 1901 Iron Cross, Second Class Iron Cross, First Class Flugzeugführerabzeichen (Pilot"s qualification badge).
