In 1311 St. Julian's church or chapel was founded in Isola. This was the first building to be constructed on what later became Senglea. On 8 May 1552 the foundation stone of Fort St.Michael was laid. Work on the fort, which was designed by Architect Pedro Pardo, was completed in 1553. Construction of walled town Senglea took place during the following decade. The area, which had until the 1550s been known as Isola di San Giuliano or Isola di San Michele, was given city status by Grand Master Claude De La Sengle and was named after him.