The Gesta Hunnorum et Hungarorum mentions that the ancestors of the family, the brothers Hont (Hunt)[1] and Pázmány (Pazman),[1] originally from the Duchy of Swabia in the Holy Roman Empire, arrived in the late 10th century to the court of Grand Prince Géza of the Magyars: The next arrivals were Hunt and Pazman, two half-brothers, courageous knights of Swabian origin.

These two and their retainers had been journeying through Hungary with the intention of passing over the sea when they were detained by Duke Géza, and finally they girded King Stephen with the sword of knighthood at the river Hron, after the German custom.

Lampert was murdered by the followers of King Béla II the Blind, because he was suspected of supporting Boris Kalamanos's claim to the throne.

Around 1201, Martin (?–1236/1245) held the office of count (comes) at the court of the future King Andrew II of Hungary, and served as the Ban of Croatia and Dalmatia.

Some modern authors suggest that the clan Hont-Poznany was formed by intermarriages of two separate families, the Hunts and the Poznans ("Pázmánys", "Posnans") when the latter's male line died out in the mid-12th century.

They claim that the ancestors both of the two families were already nobles at the time of Great Moravia and preserved their possessions after the incorporation of their territories into the arising Hungarian state.

[3][4] The theory suggests that they kept their Christian faith during the 10th century and its followers claim that the foundation deed of the Benedictine monastery of Bzovík proves that hereditary estates from the time before the arrival of the Magyars prevailed in the Hunts' property.

The charters contain names at least of fourth nobles from the Poznan family - Una, Bacha (Bača) and two sons of Bukven - Deda (Dedo) and Caca (Kačä).