Prince Sigismund of Prussia (1896–1978)

Prince William Victor Charles Augustus Henry Sigismund of Prussia (Wilhelm Viktor Karl August Heinrich Sigismund; 27 November 1896 at Kiel – 14 November 1978 at Esparza, Costa Rica), was the second son of Prince Henry of Prussia and his wife, Princess Irene of Hesse and by Rhine. He was a nephew of Kaiser Wilhelm II and Tsarina Alexandra of Russia. A 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.

Marriage and issue
On 11 July 1919 at Hemmelmark, he married Princess Charlotte of Saxe-Altenburg (4 March 1899 – 16 February 1989), eldest daughter of Ernst II, Duke of Saxe-Altenburg. They had two children:


 * Princess Barbara of Prussia (2 August 1920 – 31 May 1994) married 5 July 1954 Duke Christian Louis of Mecklenburg-Schwerin and had issue:
 * Duchess Donata of Mecklenburg (b. 11 March 1956) married 14 August 1987 Alexander von Solodkoff (b. 1951) and had issue:
 * Thyra von Solodkoff (b. 12 October 1989)
 * Alix von Solodkoff (b. 17 March 1992)
 * Niklot von Solodkoff (b. 8 December 1994)
 * Duchess Edwina of Mecklenburg (b. 25 September 1960) married 20 September 1995 Konrad von Posern (b. 1964) and had issue:
 * Leopold von Posern (b. 27 February 1996)
 * Friedrich von Posern (b. 14 June 1997)
 * Ferdinand von Posern (b. 19 June 1999)
 * Prince Alfred Friedrich Ernst Heinrich Conrad of Prussia (17 August 1924 - 5 June 2013) married Maritza Farkas de Zaladörgicse de Kiskapornok (6 August 1929 – 1 November 1996) on 15 December 1984.

Costa Rica
Prior to emigrating from Europe to Central America, he served as a marine officer.

In 1927, Prince Sigismund and his family resettled in Costa Rica. He planned to engage in banana and coffee planting on land he owned there. They were accompanied by only a governess, as the children were still young.

Sigismund died in Puntarenas on 14 November 1978.

Honours and awards
Prince Sigismund received the following awards:
 * [[Image:Order of the Black Eagle - Ribbon bar.svg|60px]] Order of the Black Eagle, Knight (Kingdom of Prussia)
 * [[Image:Ord.Aquilarossa-GC.png|60px]] Order of the Red Eagle, Grand Cross with Crown (Kingdom of Prussia)
 * [[Image:PRU Order of Crown ribbon.svg|60px]] Order of the Prussian Crown, Grand Cross (Kingdom of Prussia)
 * [[Image:D-PRU Hohenzollern Order BAR.svg|60px]] Royal House Order of Hohenzollern, Grand Commander (Kingdom of Prussia)
 * [[Image:Hohenzollern.Orden.png|60px]] Princely House Order of Hohenzollern, Cross of Honour 1st Class (House of Hohenzollern-Sigmaringen)