Mezőpilis

The name of the kindred is mentioned only once by a single document in 1293, when Peter, the son of Bás (II), was referred to as "Petrus filius Baas de genere Mezeupylis".

By that time, his lands and wealth – sharing the fate of the other local lords – were constantly threatened by the aspirations of the powerful oligarch Matthew Csák, who gradually became de facto ruler of Upper Hungary amid the feudal anarchy.

In the same year, he was involved in a lawsuit with his neighbor Seraphin, the provost of St. George church and archdeacon of the cathedral chapter in Esztergom, who possessed Zselíz (today Želiezovce) over the boundaries.

At the turn of 1294 and 1295, Peter was forced by Matthew Csák, under an unfavorable contract, to pass his castle Ugróc with its accessories – the villages Podluzsány (Podlužany), Bán (Bánovce nad Bebravou), Nastic, Ugróc (Uhrovec), Bánkóc, Zsitna, Radissa (Žitná-Radiša), Mocsonok (Močenok) and Sonko (Šípkov), today all in Slovakia – in exchange for lands of little value in Bars County, by name Tolmács (Tlmače), Bars (Starý Tekov), Mohi (Mochovce) and Puth.

Peter's son Nicholas complained to the chapter in June 1297 that the oligarch forced him and his father into the disadvantageous exchange with death threats and violence.

[4] According to historians Vince Bunyitay and Erik Fügedi, Bartholomew, the Bishop of Várad (1284–1285) was also a son of Bás (II),[7] but others – e.g. Béla Kovács, Pál Engel and Attila Zsoldos – rejected this theory.

[2] John was already an impoverished local nobleman, King Louis I of Hungary gave permission to sell his estates due to lack of funds in 1377.