House of Zähringen the death of Louis of Teck, Patriarch of Aquileia. This ducal title was later granted to Count Francis of Hohenstein (1837–1900), a morganatic son of Duke Alexander of Württemberg, in 1871. Francis' daughter Mary of Teck (1867–1953), as the wife of King George V, was Queen of the United Kingdom and the British Dominions, and Empress of India. House of Zähringen The House of Zähringen is an old German noble family from Swabia, which founded a large number of cities in the area that is today Switzerland and the German state of Baden-Württemberg. The name is derived from Zähringen castle
Duke of Teck the dynasty which had become kings of Württemberg in 1805, re-established a non-dynastic line of Dukes of Teck by his 1835 morganatic marriage with the Hungarian countess Countess Claudine Rhédey von Kis-Rhéde (1812-1841). Their son, excluded from succession to the throne of Württemberg, was born Count Francis von Hohenstein (1837-1900), sharing the title his mother was granted by Emperor Ferdinand I of Austria on 16 May 1835, two weeks after the couple married in Vienna. In 1863, King William I of Württemberg raised Francis in rank to "Prince ("Fürst") of Teck" with the style Serene Highness ("Durchlaucht"), heritable by all