b, Hédervári branch 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.

..., Volphger, who was descended from the counts of Hemburg, came with his brother Hedricus from Alemannia with three hundred armed horsemen, to whom Duke Geysa made a gift of Mount Kyscen and an island in the Danube near Iaurinum that he might dwell there for ever; here he built a castle of wood, and on the same mountain he founded a monastery, where he is buried.

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.

[3] 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.

[6] Historian Pál Engel, however, considered that Alexander Köcski individually adopted his seal following his decisive victory over his ardent enemies, the Kőszegis, as a prominent general in Charles I of Hungary's unification war against the oligarchic domains.

Accordingly, the Héders' first lands were part of the so-called "gyepűelve", a mostly uninhabited or sparsely inhabited area beyond the Austrian border, comparable to the modern buffer zones.

The clan's lands concentrated mainly in the catchment area of the rivers Rába (Raab) and Lapincs (Lafnitz) in the southwestern part of Vas County at the turn of the 12th and 13th centuries.

However, the Héders also owned contiguous lands towards the opposite direction and the mountain of Höheberg (or Hochberg) was considered the northwest border point of their territories.

He compensated its patron, comes Hencse I (Wolfer's son, also known as Heinz, Henc or Aenz) with the patronage of the newly constructed abbey of Kapornak in Zala County.

Wolfer's great-grandson, Virunt (or Werenherth), who served as a canon of the cathedral chapter of Győr, still owned Szentkút itself and the surrounding villages, Mérhart, Szombatfalva, Újfalva and Pinka in the middle of the 13th century.

In his last will, Virunt bequeathed the villages to Béla IV of Hungary and the Royal Crown, who soon donated them to Herrand, a representative of the Héder clan's other branch.

[13] His returning sons had inherited the right of patronage of the Kapornak Abbey, which was usurped by their some degree of relatives, Fabian and Benz during their absent, when they also plundered the estates of them.

[15] Brothers John I and Wolfer II, whose parentage is uncertain, possessed portions in the northeast part of the lordship, near Prosznyákfalva (today a borough in Prosenjakovci, Slovenia).

Receiving large-scale personal land donations for his military career and loyalty, he was the founder and first member of the Kőszegi family (formerly incorrectly also called Németújvári in historiographical works),[16] which had dominated the northwestern part of Vas County and their lands were arranged around significant fortresses, for instance Borostyánkő, Léka (today Bernstein and Lockenhaus in Austria, respectively) and the eponymous Kőszeg.

Henry Kőszegi established his lordship independently of his kinship and did not rely on the clan's formerly acquired landholdings in the opposite parts of Vas County.

[20] After her husband's death, she strove to keep the estate of Déshida (today an area at Lake Deseda) in Somogy County for her daughter, Anne (wife of Stephen Gyovad) in 1309 and 1310.

In the presence of her brother, Héder IV, Margaret pledged the land to the distant relative, Henry II Kőszegi, Ban of Slavonia on 23 October 1309.

Henry died by 1 May 1310, when Margaret wanted to pay the loan and recover Déshida, according to a document issued by the Somogyvár Abbey four days later.

Queen Elizabeth the Cuman, the spouse of Stephen V of Hungary, supported his protege in this effort and officially returned the villages to the Gutkeleds.

[21] He last appeared in contemporary records in 1279, when he acted as an arbiter in a lawsuit over the ownership of Gesztence (today a borough in Jánossomorja) between Conrad Győr and a maternal relative, James Bána.

[27] Héder had a son, John II, who was a supporter of Stephen V. He fought against the Bohemians, who invaded the Western borderlands of Hungary in April 1273.

He died sometime around 1284; there were some complaints that he unlawfully held a portion of Novák after his lord and relative, Ivan Kőszegi seized it from Conrad Győr.

[27] In contrast, Virág Varga argued there is no proof of the Kőszegis' involvement in the case, which was a simple local conflict between two neighboring lords.

For his military service in the Duchy of Austria, he was granted the landholdings – Szentkút, Mérhart, Szombatfalva, Újfalva and Pinka – of his late relative, canon Virunt by Béla in 1255.

His new seat laid near the lordship of Németújvár (Güssing), therefore historian János Karácsonyi argued he entered the service of the Kőszegis by that time.

The exchange was perhaps disadvantageous for James II, while his former estates (especially Oroszvár) were considered important strongholds in the military defense system of Pozsony County.

Desiderius was first mentioned in 1285, when he was granted the land of Bodak in Csilizköz (Medzičiližie; today a southern region of Žitný ostrov in Slovakia).