 The Portuguese Franciscans and Jesuits built several churches in the city, prominent being the St. Michael's Church at Mahim (1534), St. John the Baptist Church at Andheri (1579), St. Andrew's Church at Bandra (1580), and Gloria Church at Byculla (1632).The Portuguese also built several fortifications around the city like the Bombay Castle, "Castella de Aguada" (Castelo da Aguada or Bandra Fort), and Madh Fort.The English were in constant struggle with the Portuguese vying for hegemony over Bombay, as they recognised its strategic natural harbour and its natural isolation from land attacks.