Initially a starost of Malbork, Czersk, Grójec and Garwolin (since 1713), with time he allied himself to the mighty Czartoryski family.

Gräfin von Dönhoff, who was King Augustus II the Strong's Maîtresse-en-titre and later married Jerzy Ignacy Lubomirski, and Katarzyna Bielińska (1684–1761), who married Jean Victor, Baron de Besenval, on 18 September 1716, a Swiss noble in French service, who was the French ambassador to Poland at the time.

[1][2][3][4] In his role as a Marshal of the Court (since 1732) and then Grand Marshal of Poland during the reign of Augustus II the Strong, Bieliński had in fact administrative and judiciary control over a large part of Prussia (as Grand Treasurer of Prussia), Masovia (as cześnik of the Crown) and the city of Warsaw.

In 1757 with his personal funds he created a jurydyka of Bielino, a small village that over time became the core of what is now the city centre of Warsaw.

He married Dorota Henrietta née Przebendowska, daughter of his father's successor as Grand Treasurer and widow of Jan Mikołaj Radziwiłł, the Voivode of Nowogródek.