Bishop Montes was born on 13 November 1946 in Salamanca (Spain). He studied philosophy and theology at the University of Salamanca and the Pontifical University of Salamanca (UPSA) where he obtained a PhD. He also studied Theology and specialised in Protestant theology at the University of Tübingen (Germany). On 29 June 1972 he was ordained a priest. On 5 July 1997 he was consecrated a bishop, as Bishop of Avila and, since 2002, of Almeria.
He is Full Professor of Fundamental Theology at the UPSA (since 1988) where he is lecturing since 1977. Between 1997 and 2003 he was Chancellor of the Catholic University of Saint Teresa of Ávila and he is Vice-Chancellor of the UPSA since 2008.
Bishop Montes is very active on Ecumenical issues: he is Member of the European Oecumenica Societas since 1982, and he participated in the drafting of the Ecumenical Charter for Europe (1999-2001). He’s also Substitute Member of the Board of the Joint Committee between Council of European Episcopal Conferences (CCEE) and the Conference of European Churches (CEC-KEK) between 2002-05.
Bishop Montes is President of the Spanish Episcopal Commission for the Doctrine of the Faith and since March 2006 a member of COMECE.