[2] The Baksa clan, which had originated from the valley between the rivers Bodrog and Tisza, possessed villages and landholdings in Northeast Hungary, mainly Zemplén County.
[3] The Baksa clan (Simon and his sons) supported Duke Stephen in the conflict with his father, King Béla IV of Hungary, as their lands laid in the territory of the rex junior after the division of the kingdom in the early 1260s.
[5] For his loyal service, he was granted the estate of Kengyeltelek, near Bodrogszerdahely (present-day Streda nad Bodrogom in Slovakia) in that year.
[6] After the death of Stephen V, he remained a supporter of the royal power during the rule of the child Ladislaus IV of Hungary, who donated the village of Radvány to Thomas in 1280.
He bought Semjén and Kövesd in the territory of Bodrogköz and Halász in Szabolcs County in 1280, Sztrite (present-day Siurte, Ukraine) in 1281.