[3] Depending on his origin (German or French), Lucas might have come to the country as an accompanist of either Gertrude of Merania (1205) or Yolanda de Courtenay (1215), the first and second spouse of Andrew II, respectively.
His career and life is difficult to outline: it is presumable that he is identical with that Lucas, who served as Master of the cupbearers in the royal court from 1229 to 1230.
Ludbreg later became a residence of his son Peter, who erected a castle above the village and adopted his surname after his lands' centre.
This branch died out with George's grandson Nicholas Ludbregi in 1357, thereafter Ludbreg and other lands became the property of Ban John Csúz and his descendants.
Initially, he was a confidant of rex iunior Stephen, but later joined the partisans of the elderly Béla IV of Hungary.
[6] His son, John was ispán of Veszprém County as a confidant of Queen Mother Tomasina Morosini in 1295,[7] while his unidentified daughter married Stephen Hahót.
His only son Ladislaus Nevnai held estates in Valkó and Požega counties, including Orjava (today Orljavac, Croatia), and was considered one of the richest landowners of the region.
Alongside two other local nobles, he unsuccessfully filed a lawsuit for the ownership of some portions of Kajár (present-day Kajárpéc) in 1240; Béla IV ruled in favor of the Bakonybél Abbey, referring to St. Ladislaus' royal charters from the late 11th century.
He and his brother Apor besieged and captured Tátika Castle (located near Zalaszántó), which belonged to the property of the Diocese of Veszprém.