Ku qor sii wadida cutubkan - 1736, qarax ayaa ka dhacay bakhaarka kaydka ee qalcadda São Pedro, isla waqtigaas oo lagu daray ravelin labalaab ah qalcadda. Intii u dhaxeysay 1737 iyo 1738, shaqada goobta waxaa hogaaminayay Injineerka Boqortooyada Manuel de Azevedo Fortes, oo ay ka caawiyeen injineerada Pinto de Alpoim iyo Jacinto Lopes da Costa. Manuel de Azevedo Fortes wuxuu soo jeediyay in la dhiso: fardaha lagu rakibay ee ka sarreeya qalcadda São João de Deus; jikada horteeda ravelin dos Amores; "tenalham" ee horteeda derbiyada u dhexeeya qalcadaha São Pedro iyo Santo António; qolalka difaaca ee qolalka, ee horteeda dhammaan derbiyada, marka laga reebo gadaal iyo irdaha; wargeys budo ah oo ku teedsan qalcadda; laba qol oo bam-difaac ah oo ku hoos jira qalcadaha São Francisco iyo Santa Bárbara; kala qaybsanaanta ravelin de Santo António laba qaybood oo gooni ah halkii qolal iyo albaab dhanka bari ah; iyo furitaanada dhabarka ee qalcadaha São Pedro, São Francisco iyo derbiyada u dhexeeya qalcadaha São João de Deus iyo Santa Bárbara. Inta badan mashaariicda la soo jeediyay lama fulin, oo kaliya albaabada São Francisco iyo ravelins qaar ayaa la bilaabay. Intii u dhaxeysay 1746 iyo 1747, dhul ayaa la qabsaday si loo fuliyo qalcadda. Bishii Nofeembar 1, 1755 dhulgariirkii caanka ahaa ee Lisbon
waxay waxyeelo u geysteen derbiyada waxayna burburiyeen xeryaha ciidamada lugta.