The eparchy was founded as a consequence of the Concordate between the Holy See and The Romanian State concluded on May 10, 1927 and ratified on June 10, 1929.

[2] With the Bull Sollemni Conventione of June 5, 1930, Catholic Hierarchy of both rites was established all over the territory of the Romanian Kingdom; it was then that the creation of a new diocese, of Maramureș was decided.

The first Bishop of this Diocese, appointed by the Holy See on October 16, 1930, with the approval of the Romanian Government, was Dr. Alexandru Rusu, consecrated on January 30, 1931 and enthroned in his cathedral on February 2, 1931.

The second bishop of the diocese, who acted as apostolic administrator, was Dr. Ioan Dragomir, consecrated in clandestinity on March 6, 1949, at the nunciature in Bucharest.

On August 9, 1987, at the diocesan chapter, attended also by Metropolite Alexandru Todea, Fr.