The church was built by prince Siemowit III and his wife Eufemia of Opava in the mid-fourteenth century, for the Augustinian fathers brought to Ciechanów. At that time it wore the call of Saint Martin. The place for the construction of the church and monastery was given by prince Kazimierz I of Warsaw in 1353. The temple was destroyed several times, especially in the seventeenth century during the Swedish Deluge. During the reconstruction, the side aisles were pulled down, the arcades were bricked up and the gothic vault removed, and the pointed windows were replaced by rectangular ones. The Order was dissolved after the January Uprising in 1864. From that time, the church belonged to the parish parish.
The church was built as a brick, gothic three-nave basilica. It had a chancel with a size similar to the central nave, ending with a straight wall. Its high walls were reinforced with buttresses, between which were pointed arch windows. The western and the eastern façades were crowned with gothic gables.
Żabicki J., Leksykon zabytków architektury Mazowsza i Podlasia, Warszawa 2010.