Prince William Victor Charles Augustus Henry Sigismund of Prussia (German: Wilhelm Viktor Karl August Heinrich Sigismund; 27 November 1896 at Kiel – 14 November 1978 at Puntarenas, Costa Rica), was the second son of Prince Henry of Prussia and Princess Irene of Hesse and by Rhine. He was the nephew of Kaiser Wilhelm II and Tsarina Alexandra of Russia. As the great-grandson of Queen Victoria through both his parents, he was the only one of three brothers who did not have the hemophilia common among her descendants.
Contents
Life
Marriage and issue
On 11 July 1919 at Hemmelmark, he married Princess Charlotte of Saxe-Altenburg (4 March 1899 – 16 February 1989), the eldest daughter of Ernst II, Duke of Saxe-Altenburg. They had two children:
Barbara Irene Adelheid Viktoria Elisabeth Bathildis (2 August 1920 – 31 May 1994), married in 1954 Duke Christian Louis of Mecklenburg, with issue, including Donata Mecklenburg-Solodkoff.
Alfred Friedrich Ernst Heinrich Conrad (17 August 1924 – 3 June 2013), married in 1984 Maritza Farkas de Zaladörgicse et Kiskapornok (6 August 1929, Gombaszog, Košice Region, Czechoslovakia – 1 November 1996), without issue.




