Category:Coats of arms of the house of Teck

First House of Teck: Adalbert I (d. 1196) was a son of Duke Conrad I of Zähringen. Upon the death of his brother Berthold IV in 1186, he inherited the family estates around Teck Castle and, from 1187, adopted the title of Duke of Teck. His descendant Conrad II of Teck (1235–1292) allegedly was designated King of the Romans shortly before his assassination. The line became extinct in 1439 with the death of w:Louis of Teck, Patriarch of Aquileia.

Second House of Teck: In 1495 Maximilian I, King of the Romans and Holy Roman Emperor, declared Eberhard V, Count of Württemberg (German: Graf von Württemberg) (Eberhard im Bart ("Eberhard the Bearded")) as Duke of Württemberg (as w:Eberhard I, Duke of Württemberg) (German: Herzog von Württemberg). He was also granted the defunct title of "Duke of Teck".

Third House of Teck: In 1871, a ducal title with the same name was granted by King Charles I of Württemberg to Prince Francis of Teck (1837–1900), a morganatic son of Duke Alexander of Württemberg. Francis' daughter Mary of Teck (1867–1953), as the wife of King George V, became Queen of the United Kingdom and the British Dominions, and Empress of India. Francis’s surviving children ceased using their German titles during World War I and (aside from Queen Mary) took the name “Cambridge” with his eldest son Adolphus being made Marquess of Cambridge and his youngest son Alexander being made Earl of Athlone. This branch of the family died out in the male line in 1981