| 2 September 1955 | Territory Added | Diocese of Lérida (Morillo de Liena, Bacamorta, Egea, Llert, Serrate, Nocellas, Merli, Villacarle, Vilas de Turban, Ballabriga, Beranúy, Denúy, Nerii, as well as Estada, Estadilla, Fons, and Almunia de San Juan)
| Diocese of Barbastro
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