Nils Turesson Bielke was an ardent supporter of Duke Carl which rewarded his fidelity in 1602 when he became Kansliråd, deputy director of the kingdom; in 1605 he became governor of Tallinn and its province, in 1606 member of privy council and in 1608 judge.

In addition, both he and his brother Svante Turesson Bielke were raised to rank of barons.

In 1614 he became assessor of Svea Court of Appeal, based in Stockholm.

In 1623 first president of Turku Appellate court and the first governor-general of Finland.

[1][2] In the 1605 Nils Turesson Bielke married Ingeborg Oxenstierna, they had eight sons: