levels of embankments (with four emplacements) to the Bastion of São Pedro; Bastion of São Pedro (Saint Peter), to the left of the Portão de Armas (main portico), with 15 cannon emplacements. Supported by its own magazine, the bastion in 1766 defended attacks with six cannons to the left and seven to the right of the main door. Bastion of Boa Nova (Good New), located along the São Pedro Bastion, contained 16 cannon, supported by two gunpowder magazines and the lookout at the Torreão da Bandeira (the lookout also served to hoist the imperial flag, hence its name). The bastion, which overlooks the Bay of Angra, was renamed (from a marble inscription on its battery) in the context of the Liberal Wars in honour of Peter IV of Portugal (Battery of Peter IV). Following this emplacement is the Battery of Maria II (similarly named in honour of Queen Maria II after the Liberal Wars), and later the Battery of Malaca which, at one time housed a bronze, 36-calibre cannon from the Fort of Diu (which was returned to Lisbon on 22 July 1771. From the Malaca Battery, by way of the arch of the Portão de Armas, a staircase descends to an old garden; and Bastion of the Espírito Santo (Holy Spirit), which overlooks the Campo do Relvão, where were located four cannons and three gunpowder magazines (one in the middle and the other two on either angle), linked to a wall with six cannons and one magazine, that end; Bastion of Santa Luzia (Saint Lucy), with five cannons and one magazine, that extend to two descending walls (with its own cannon emplacement and magazine). In addition, by 1849, another gunpowder magazine, referred to as the Paiol Novo, was constructed. Also located in this bastion, was the building of the artillery laboratory, which was actually a replacement for an older, larger building that was destroyed in a violent fire on 7 May 1821, resulting in five deaths. On the western flank of the fort, near the Santa Catarina Bastion and over the Bay of Fanal, there also exists the Arsenal Battery with five other cannon emplacements. The Santa Luzia Bastion is also connected by the one kilometre long Santo António wall, along the eastern coast of Monte Brasil, with several ancillary fortifications (from north to south): Gate of Portinho Novo; Gate of Porta do Cais da Figueirinha; Redoubt of Dois