It faced a serious religious crisis that time which surrounded that society, namely the Protestant proselyte made by Dr. Robert Kalley.
He was transferred to the Diocese of Beja on the Portuguese mainland on 18 April 1849 and was confirmed with a bull of Pope Pius IX Romani Pontificis, on 28 September, he succeeded D. Manuel Pires de Azevedo Loureiro.
Under a proxy of 28 January 1850, he ordered Dr. Lobo Pimetel to take possession of the Beian Diocese which had the parish on 15 February.
After the death of Dr. Lobo Pimentel, he went to Lisbon for a provision where he named Father João Baptista da Silva vicar general.
On 7 December 1859, he was transferred to become bishop of Viseu after succeeding D. José (III) Manuel de Lemos, he resigned from his chair and abandoned the Diocese as he was incapable to offer obedience to its fathers in material of clerical vestments, he was succeeded by D. António (IV) Alves Martins.