The Portuguese, after their arrival in Sri Lanka in 1505, began a campaign of forced conversion and destruction of many Buddhist and Hindu temples around the island. They destroyed the Munneswaram temple completely in 1578 CE with the exception of the basement, and used the core of the building as a Roman Catholic chapel. Jesuits recorded that they used iron bars to destroy the presiding deity. According to a 1640 Portuguese records, they were able to convert 500 people from the village of Munneswaram as Roman Catholics. However, the locals and temple administrators were able to hide many of the idols of the temple complex before the destruction.