Jakub Sobieski (1590-1646) was a Polish noble, parliamentarian, diarist, political activist and father of King Jan III Sobieski.

Son of castellan and voivode Marek Sobieski and Jadwiga Snopkowska.

He was courtier since 1617, Krajczy of the Crown since 1626, Podczaszy of the Crown since 1636, voivode of Belz Voivodship since 1638 and of Ruthenian Voivodship since 1641 and castellan of Kraków since 1646.

Starost of Trembowla , Krasnystaw, Jaworów , Stryj , Kałusz, Bar and Gniewo .

Sobieski educated in Kraków and Paris. He was a famed orator and parlametarian. He participated in the military expedition against Russia in 1617-1618 (wounded during the assault of Moscow), and was a member of the War Council (Rada wojenna) of King Władysław IV.

He took part in negotiations of Daulin in 1618 and in the Chocim expedition in 1621 and the negotiations of Szumska Wies in 1635.

As Sejm Marshal he leds the ordinary Sejm in Warsaw on January 24 - March 5, 1623 and on January 27 - March 10, 1626, the extraordinary Sejm in Warsaw on June 27 - July 18, 1628 and the Election Sejm in Warsaw on September 24 - November 15, 1632.

Children

• Marek become starost.
• Jan become Marshal, Hetman and King of Poland.
• Katarzyna married Władysław Dominik Zasławski and Michał Kazimierz Radziwiłł.

Works

During the Chocim expedition in 1621 he wrote a diary called Commentariorum chotinensis belli libri tres (Pamiętnik wojny chocimskiej - Diary of the Chocim War), which was published in 1646 in Gdańsk.