William II was the last King of Württemberg. He ruled from 6 October 1891 until the dissolution of the kingdom on 30 November 1918. He was the last German ruler to abdicate in the wake of the November Revolution of 1918.

The Kingdom of Württemberg was a German state that existed from 1805 to 1918, located within the area that is now Baden-Württemberg. The kingdom was a continuation of the Duchy of Württemberg, which existed from 1495 to 1805. Prior to 1495, Württemberg was a county in the former Duchy of Swabia, which had dissolved after the death of Duke Conradin in 1268.