[1] Desiderius first appears in contemporary records in 1285, when acquired the village of Bodak, which laid in the area between Danube and Csiliz creek in Győr County (present-day Bodíky in Medzičiližie, a southern sub-region of Žitný ostrov in Slovakia).

It is plausible that Desiderius and his brothers were also subjugated by the unscrupulous oligarch Ivan Kőszegi, who forced several local nobles to join his allegiance and enter his service.

After Charles I defeated the Kőszegis by the autumn of 1317, Desiderius was granted the villages of Sérc (Felsőlövő) and Szil near Lake Neusiedl (Fertő) in Sopron County as a compensation for his material losses and loyal service in September 1317 (present-day Schützen am Gebirge and Rust in Burgenland, Austria, respectively).

[3][4] After the fall of James Borsa and his clan's oligarchic province, Desiderius was made ispán of Zaránd County and castellan of Világos Castle (today ruins in Șiria, Romania) in 1318.

[9] He was one of the signatory barons in that document in April 1323, when Frederick the Fair and his brothers renounced Pressburg (now Bratislava in Slovakia), which they had controlled for decades, in exchange for the support they had received from Charles against Louis IV, Holy Roman Emperor in the previous year.

[8] He was granted the estates Farkasfölde and Kövesd in Győr County by Charles I in 1324, but the family of the late Stephen Vönöcki successfully recovered the lands shortly thereafter.

[11] Desiderius was one of the signatories of that diploma of Charles in Bruck an der Leitha on 21 September 1328, when the Hungarian monarch signed a peace treaty with the three dukes of Austria (Frederick the Fair, Albert the Lame, and Otto the Merry), who renounced Pressburg and the Muraköz (now Međimurje in Croatia).

[17] However, some modern scholars expressed doubts about the reality of the story, because neither contemporary nor subsequent documents referred to the circumstances of Desiderius' death, in addition to the political insignificance of his descendants.

[15] Historian László Veszprémy emphasizes that heroic deeds similar to Desiderius' were a frequently used topos in medieval chronicles when narrating the events of a losing military campaign.

[18] Desiderius and his unidentified wife had a son Henry (or Héder), who – according to historian Pál Engel – inherited the lordship of Zaránd County with its accessories, including Világos Castle after his father's death.

Zsoldos emphasizes that Lawrence Nagymartoni was already referred to as ispán of Zaránd County in May 1332, just half a year after the contract, and Henry never gained any dignities in the royal court despite his father saved the life of Charles in the Battle of Posada.

Consequently, Szőcs argues that Charles I granted Zaránd County and its accessories to Desiderius' widow and minor son, who appointed Anthony as their vice-ispán.