Archbishop Emeritus Mgr Guzeppi Mericea will celebrate 60 years as a priest on Thursday.
The anniversary will be marked with Thanksgiving Mass organised by the Cathedral Chapter at the Cathedral in Mdina at 6 p.m.
Mgr. Mercieca was ordained by Bishop Joseph Pace on 8 March 1952, in Gozo.
He was Rector of the Gozo Seminary from 1959 until 1969 when he was appointed Judge of the Sacred Romana Rota. He was also consultor to the Congregation of the Sacraments and of the Congregation for the Doctrine of Faith.
On the 27 July 1974 Mgr Mercieca was appointed auxiliary bishop of Malta and consecrated titular bishop of Gemelle in Numidia on the 29 September 1974.
He was appointed Archbishop of Malta on 12 December 1976 and headed the Archdiocese of Malta until 27 January 2007 when he presided over the episcopal ordination of Archbishop Paul Cremona O.P.