Complex sentence: The Ottomans under the Sultan Salim, invaded the village and brought with them the Muslim Chiia to the heart of the Maronite's (Eastern catholic) region, were they built a Mosque on the eastern side of the castle.
Split into simpler sentences: The Ottomans under the Sultan Salim, invaded the village and brought with them the Muslim Chiia to the heart of the Maronites' (Eastern catholic) region. They built a Mosque on the eastern side of the castle.