Marriage with Izabela Tęczyńska in 1639 allowed him to inherit the significant estates of the Tęczyński family.

Bibliophile himself, just like his brother, he expanded the library inherited from Izabela's uncle, Jan Tęczyński.

At the age of 20 during the Election Sejm of 1632, he voted for king Vladislaus IV Vasa.

He advocated criticized the shortcomings of the Golden Liberty[2] and demanded political reforms, among them the reformation of Sejm deliberation procedures (in his Rozmowa Plebana z Ziemianinem... (Conversations of a Parson with a Country Squire), 1641),[2] opposed liberum veto and abuse of power by magnates (in his Coś nowego..., 1652).

[2] That year he published Poeta nowy (New Poet), the first work in Polish on the principles of poetry.