San Agustin Parish Church (Bay, Laguna) San Agustin Parish Church (Bay, Laguna) St. Augustine Parish Church (Filipino: "Simbahan at Parokya ni San Agustin") is the only Augustinian Roman Catholic church in Bay, Laguna, in the Philippines. The church was first administered by Augustinians friars and later transferred to the Franciscans. The current parish priest is Reverend Father John F. Tabot. It is historically considered as the oldest Roman Catholic church in the Province of Laguna upon the early conquest and establishment of La Laguna. The first church of Bay was constructed made of light material of bamboo and nipa by the first ever catholic missionaries in
Laguna (province) towns of Bay, Pangil, and Pakil were reputed to have once been a part of his domain, although accounts vary on who exactly Gat Pangil was. The Province of Laguna, which was formerly called "La Laguna" and "La Provincia de la Laguna de Bay", was named after Laguna de Bay, the body of water that forms its northern boundary. Laguna de Bay, in turn, was named after the town of Bay, the first provincial capital. Captain Juan de Salcedo with a band of one hundred Spanish-Mexican soldiers conquered the province and its surrounding regions for Spain in 1571. The province