The church was built in the first half of the 14th century for the Dominicans who were probably brought here by the Cieszyn prince, Mieszko. The construction of the monastery was continued by the Duke of Oświęcim Władysław and his wife Eufrozyna.
In 1594, the Dominicans transformed the existing chapter house into a chapel on the occasion of the canonization of St. Jack. It was oriented similarly to the church. In the years 1608-1610 the church was rebuilt in the Renaissance style.
After the monastery was closed down by Emperor Joseph II, it was turned into a warehouse in the first quarter of the 19th century, completely ruined. After some time, the building fell into Jewish hands and fell into ruin. In 1895, during the Corpus Christi procession, Our Lady appeared on the ruins of the church, which was an impulse for the recovery and reconstruction of the church by the Catholic community of the city of Oświęcim. On the centenary of the event, the church was recognized as the Sanctuary of Our Lady, Help of Christians.
The church was restored by the Salesians, but lost its original character - now it is neo-Gothic. The chancel was turned into a nave due to the entrance from Jagiełły Street (previously on the side of the church). Thanks to this, it is no longer oriented like the chapel (chapter house) of St. Jacek, with whom it was originally a monastery complex.
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