Johann, Prince of Hohenzollern-Sigmaringen
Prince Johann of Hohenzollern- Sigmaringen( 17 August 1578 in Sigmaringen – 22 March 1638 in Munich), was the ruling Count of Hohenzollern- Sigmaringen from 1606 to 1623.
He was elevated to the rank of prince in 1623 and so was" Prince" of Hohenzollern- Sigmaringen from 1623 until his death.
Prince Ferfried of Hohenzollern
Ferfried of Hohenzollern( born 14 April 1943) is a member of the princely House of Hohenzollern- Sigmaringen and former champion race car driver.
Prince Ferdinand of Hohenzollern
Prince Ferdinand of Hohenzollern
(Ferdinand Maria Fidelis Leopold Meinrad Valentin; born 14 February 1960) is the youngest of three children of Friedrich Wilhelm, Prince of Hohenzollern and his wife Princess Margarita of Leiningen.
Frederick XII, Count of Hohenzollern
Friedrich XII, Count of Hohenzollern, nickname Friedrich the Oettinger( before 1401 – 1443) was a German nobleman.
He was a member of the Swabian branch of the House of Hohenzollern.
His father was Friedrich XI, Count of Hohenzollern; his younger brother and rival was Eitel Friedrich I, Count of Hohenzollern.
Prince Karl Anton of Hohenzollern
Prince Karl Anton of Hohenzollern- Sigmaringen( 1 September 1868 – 21 February 1919) was a member of the Princely House of Hohenzollern- Sigmaringen.
Karl Anton was the third and youngest son of Leopold, Prince of Hohenzollern and his wife Infanta Antónia of Portugal.
Karl Anton's elder brothers were William, Prince of Hohenzollern and Ferdinand I of Romania.
Prince Carl Christian of Hohenzollern
Prince Carl Christian of Hohenzollern( born 5 April 1962) is the eldest child of Prince Johann Georg of Hohenzollern and of his wife Princess Birgitta of Sweden, sister of King Carl XVI Gustaf of Sweden.
Alexander, Hereditary Prince of Hohenzollern
Alexander, Hereditary Prince of Hohenzollern( born 16 March 1987 in New York City) is a member of the Princely House of Hohenzollern.
Alexander is the eldest son of Karl Friedrich, Prince of Hohenzollern and Countess Alexandra Schenck von Stauffenberg, who divorced in 2010.
He is the heir apparent to the headship of the princely house.
Frederick XI, Count of Hohenzollern
Friedrich XI, Count of Hohenzollern( died 26 November 1401), nicknamed" Friedrich the Elder" was a German nobleman.
He was a member of the House of Hohenzollern and a ruling Count of Hohenzollern- Hechingen.
Friedrich Wilhelm, Prince of Hohenzollern
Friedrich Wilhelm, Prince of Hohenzollern (3 February 1924– 16 September 2010) was the head of the Princely House of Hohenzollern for over 45 years.
Karl Friedrich, Prince of Hohenzollern
Karl Friedrich, Prince of Hohenzollern( born 20 April 1952) is the eldest son of the late Friedrich Wilhelm, Prince of Hohenzollern and Princess Margarita of Leiningen.
He became head of the Princely House of Hohenzollern, the Roman Catholic Swabian branch of the dynasty, upon his father's death on 16 September 2010.

Question: What is the date of death of Prince Ferdinand Of Hohenzollern's father?
Answer: 16 September 2010