Héder (also Heydrich or Hedrich) was the name of a gens (Latin for "clan"; nemzetség in Hungarian) in the Kingdom of Hungary, several prominent secular dignitaries came from this kindred. The ancestors of the kindred were two German knights from the Duchy of Swabia, brothers Wolfer and Héder. They were granted large-scale domains in Western Hungary. The powerful and influential Hédervári and Kőszegi noble families descended from them. Origin According to the Illuminated Chronicle, Wolfer and Héder belonged to the Counts of Hainburg. Mark of Kalt's work incorrectly – accidentally or intentionally – refers to Grand Prince Géza (c. 972–997), father of Saint Stephen, the first King of Hungary, in fact, Wolfer and Héder arrived to Hungary during the first regnal years of the minor Géza II of Hungary (definitely before 1146). The brothers' place of origin is in dispute. Simon of Kéza's Gesta Hunnorum et Hungarorum writes that Wolfer and Héder came from "Vildonia" with forty armored soldiers, referring to Burgruine Wildon in Styria, however the castle itself was built only after 1157 thus that identification is incorrect. Johannes de Thurocz says in his work Chronica Hungarorum that the two knights originated from Hainburg of "Alemannia", therefore the Duchy of Swabia. Presumably Mark of Kalt's version is closer to the truth, as there was a certain knight Wolfger von Erlach in the first half of the 12th century in Hainburg. Due to the similarity between forenames within the family, the coat of arms and their frequent church dedications to St. James the Great, the Slovak historian Mária Feješová considers that the Héders presumably originated from the historical region of Picardy in the northwestern part of the Kingdom of France and perhaps they were related to the local Clacy medieval noble family. According to Feješová, knights Wolfer and Héder came to Hungary and permanently settled during the Second Crusade in 1147. In 1157, Gervasius, Bishop of Győr contributed and permitted the foundation of the Benedictine Abbey of Küszén (later Németújvár, present-day Burg Güssing in Austria), to comes Wolfer, who donated several surrounding lands to the monastery. Gervasius subordinated the monastery to the Pannonhalma Abbey and dedicated the new monastery to Virgin Mary. Both Wolfer and Héder were considered strong confidants of Géza II. Héder was the ancestor of the prestigious Hédervári family, while the infamous Kőszegi family originated from Wolfer. As later the Héder genus was named after Héder and