Fr Francisco Xavier Vas was a former professor at Rachol Seminary. He was a Diocesan Priest who worked as the Vicar in the Church of the Immaculate Conception in Panjim, Goa. The Immaculate Conception Church at Panjim, Goa was built in 1600. He was a native of Anjuna, Goa. He was relieved from service at his request on 25 September 1908. He was previously the Vicar of Tilamola, Goa. He was relieved at his request on 11 September 1929. He passed away on 17 August 1940.