Hadmar III of Kuenring
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Hadmar III of Kuenring (c. 1180–1231) was a medieval Austrian ministerialis from the house of Kuenring and son of the famous Hadmar II of Kuenring, who imprisoned King Richard the Lionheart at Dürnstein castle. He was famously called the 'Hound of Kuenring', alongside his brother, Henry III of Kuenring, for their martial prowess.[1]
He, along with his brother, Henry III, took part in the Fifth Crusade with Leopold VI, Duke of Austria.