Magul Maha Viharaya, located in Sithulpawwa near Yala in southeastern Sri Lanka, dates back to the 2nd century BCE and is associated with the marriage of King Kavantissa and Queen Viharamahadevi.

According to legend, their marriage ceremony is believed to have taken place at Magul Maha Viharaya in Lahugala, while the Magul Maha Viharaya in Sithulpawwa is said to be the location where they spent their first night as a royal couple.