when Paulinus of Malta was the lord of the island and later when Giliberto Abate made a census of the islands. Another reference to the castle is that from the short Angevin rule (1266–83) where documents list it again as and list a garrison of 150 men together with several weapons. It seems also that by 1274, the castle already had two chapels which are still there today. A detailed inventory of weapons and supplies in the castle exists from the same year. From 1283 the Maltese islands were under Aragonese rule (although the castle remained for some time in Angevin rule while the rest of Malta was already in Aragonese hands) and the fortification was mainly used by Castellani (like the de Nava family) who were there to safeguard the interests of the Aragonese crown. In fact the Castellans did not have any jurisdiction outside the ditch of the fort. By 1445 a Mariam confraternity, one of the eldest in Maltese history, had its convent located at the site. A middle-ages window was discovered during renovations. It is documented that this had been walled up soon after the arrival of the knights. Knights' period When the Order of Saint John arrived in Malta in 1530, they chose to settle in Birgu, when it was observed the site of Fort St Angelo was partially abandoned and in ruins. After renovation it became the seat of the Grand Master, which included the refurbishing of the Castellan's House and the Chapel of St Anne. The Knights made this their primary fortification and substantially reinforced and remodelled it, including the cutting of the dry ditch to make it a moat and the D'Homedes Bastion built by 1536. By 1547, a large cavalier designed by Antonio Ferramolino was built behind the D'Homedes Bastion, and De Guirial Battery was built at the tip of the fort by sea level to protect the entrance to Dockyard Creek. These works transformed the fort into a gunpowder fortification. Fort St Angelo withstood the Turks during the Great Siege of Malta, during which it succeeded in tearing apart a sea attack by the Turks on Senglea on 15 August 1565. In the aftermath of that siege, the Knights built the fortified city of Valletta on Mount Sciberras on the opposite side of the Grand Harbour, and the administrative centre for the knights moved there. In 1644, Giovanni de’ Medici