Claus Felix von Amsberg

Klaus Felix von Amsberg (German: Klaus Felix Friedrich Leopold Gabriel Archim Julius August von Amsberg; 1 September 1890 – 19 December 1953) was a member of the German Niederer Adel (lower nobility) and father of Prince Claus of the Netherlands, who was the father of King Willem-Alexander of the Netherlands, thus making him the paternal grandfather of the current Dutch monarch.

He was born at Rehna, Mecklenburg-Schwerin, German Empire (now Mecklenburg-Vorpommern, Germany), the first child of Wilhelm von Amsberg (1856–1929), by his marriage to Elise von Vieregge (1866–1951).

In World War I he fought as a German officer in the Imperial German Army at the side of General Paul von Lettow-Vorbeck in German East Africa.

Claus was from 1917 the steward of an estate after a failed venture in Africa as a planter.

In 1928 he moved with his family to Tanganyika (now Tanzania), where he remained during the outbreak of World War II as the manager of an Anglo-German tea and sisal plantation. He returned to Germany in 1947.

Claus married on 4 September 1924 at Hitzacker to Baroness Gösta von dem Bussche-Haddenhausen (1902–1996), daughter of Baron George von dem Bussche-Haddenhausen and Baroness Gabriele von dem Bussche-Ippenburg.