[2][3] After Lithuania's union with the Kingdom of Poland in 1569 and formation of the Polish–Lithuanian Commonwealth, the voivodeship was transferred to the Polish Crown,[4][5] where it belonged to the Lesser Poland Province of the Polish Crown.

1274, the historical Podlachia region was added to the Grand Duchy of Lithuania.

King of Poland Sigismund gave a privilege to Ioannes Sapieha [pl] to form a government of Podlaskie Voivodeship on 29 August 1513.

[3] It originally consisted of the following former Trakai lands: Drohiczyn, Mielnik, Bielsk, and Brest Litovsk.

The Voivodeship consisted of the following ziemias: The emblem of the region is connected by two arms of Polish and Lithuanian – the Polish Piast Eagle without a crown on a red field, and the Pogoń, depicting a Lithuanian knight.