Jan Tęczyński (1581–1637), of the Topór coat-of-arms, was governor of Kraków (1620–37), Crown Cupbearer (czesnik koronny) from 1618, starosta of Płock, and owner of Tenczyn and Rytwiany. He was the son of Andrzej Tęczyński. In 1606 he married Dorota Mińska. As his three sons died young, he became the last of this line of the Tęczyński family. His library and much of his wealth were inherited by the son-in-law of his brother Andrzej Tęczyński, Łukasz Opaliński, husband of Izabela, who was also a famous writer and patron of the arts and sciences.