Just to the right of the Convento de San Francisco, this church has an interesting wooden ceiling with beautifully carved cross pieces in the central vault. It is rumored that the hero Don Blas de Lezo is interred within the church. Don Blas was the one eyed, one legged, one armed general who in 1741 defeated British Admiral Edward Vernon, in what became known as the largest naval assult, involving 186 ships, in early maritime history.