Complex sentence: In 1237 a Cistercian monastery began to be built in the village, which was foiled by First Mongol invasion of Poland of 1241, and eventually never finished (instead the monastery was built in Rudy Raciborskie).
Split into simpler sentences: In 1237 a Cistercian monastery began to be raised in the village, which was foiled by the First Mongol invasion of Poland in 1241. Eventually it was never finished (instead the monastery was built in Rudy Raciborskie).