Zakroczym Land

Zakroczym Land (Polish: ziemia zakroczymska), named after the town of Zakroczym), was an administrative unit (ziemia) of the Duchy of Mazovia, Kingdom of Poland and the Polish–Lithuanian Commonwealth.

It was part of Masovian Voivodeship, and its history dates back to the late Middle Ages, when Zakroczym became seat of a castellan.

Total area of the Land of Zakroczym was 1155 square kilometers.

Located in central Mazovia, it was divided into three counties: Zakroczym, Serock, and Nowe Miasto.

The biggest city of Zakroczym Land however was Pultusk, with its residence of the Bishops of Plock and Jesuit College.