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 Kirchheim and Owen. After the death of his brother Duke Berthold IV in 1186, Adalbert adopted the title of "Duke of Teck". His descendant Duke Conrad II upon the death of King Rudolph I of Germany in 1291 even became a candidate for the election as King of the Romans, but probably was slain by his opponent Siegfried of Westerburg, Archbishop of Cologne, the next year. In the 13th century, the family divided into the lines of Teck-Oberndorf and Teck-Owen. The Dukes of Teck-Oberndorf died out in 1363 and Frederick of Teck-Owen sold their possessions to the Counts of Hohenberg.