Hartwerd (West Frisian: Hartwert) is a small village, near Bolsward, in the municipality of Súdwest-Fryslân in the Province of Friesland in the Netherlands.

[3] A restored historic windmill, De Oegekloostermolen, which was built before 1830 stands near the village.

In the course of the Münster Rebellion, the monastery was attacked in 1535 by a group of Anabaptists, who badly damaged the buildings of the cloister.

He was a Carmelite friar, who became a noted scholar and philosopher, and helped to found Radboud University.

He was arrested by the Gestapo during the Nazi occupation of the Netherlands for his open and strong opposition to their goals, and sent to Dachau concentration camp.