The present structure dates from the 17th century however a much older church existed on its site . The original medieval chapel was built in 1417 by a nobleman Francesco Gattoand his wife Paola de ' Castelli . On 22 January 1575 the chapel was visited by Bishop Pietro Dusina on his apostolic visit to Malta . Prior to 1661 the chapel was owned by the Gatto Murina family . In 1661 the chapel was given to the church in Malta . The medieval chapel was damaged in the 1693 Sicily earthquake which destroyed much of Mdina including the medieval cathedral
1693 Sicily earthquake
1693 Sicily earthquake
St Agatha's chapel, Mdina