 Johann IV von Khevenhüller zu Aichelberg (born ca 1420-1462) was the first to hold the family title "of Aichelberg", yet Johann V Khevenhüller (died 1462), son of Wilhelm II Khevenhüller and Margareta von Auersperg, was Burgrave of Federaun, whereas his son, Augustin Khevenhüller, who died 1516, is referred to as Herr (i.e.Lord) of Hardegg.His mother was one "Miss" von Lindegg, who together with her grandson Sigismund III, Herr Khevenhüller in Hohen-Osterwitz (1507–1558) appears among the ancestors of Prince Charles.