Changes in Ecclesiastical Jurisdictions in Portugal

Date	Change
300	Diocese of Elbora was established
300	Diocese of Salácia was established
306	Diocese of Ossonoba was established
314	Diocese of Betecas was established
350	Diocese of Aquae Flaviae was established
350	Diocese of Olisipo was established
350	Diocese of Salácia was suppressed
380	Diocese of Braga was established
400	Diocese of Betecas was suppressed
400	Diocese of Coinimbriga was established (from Diocese of Olisipo and became suffragan of Emerita Augusta)
440	Diocese of Braga was promoted as Metropolitan Archdiocese of Braga (with suffragan see Astorga)
468	Diocese of Coinimbriga was renamed as Diocese of Aeminium
500	Diocese of Pax Iulia was established (became suffragan of Emerita Augusta)
558	Diocese of Dume was established (from Metropolitan Archdiocese of Braga)
561	Diocese of Viseu was established (from Metropolitan Archdiocese of Braga and became suffragan of Braga)
569	Diocese of Caliábria was established (from Diocese of Viseu)
569	Diocese of Egitânia was established (from Diocese of Viseu and became suffragan of Braga)
569	Diocese of Lamego was established (from Diocese of Viseu and became suffragan of Braga)
569	Diocese of Magnetum was established (from Metropolitan Archdiocese of Braga and became suffragan of Braga)
585	Diocese of Magnetum was suppressed (to establish Diocese of Portucale)
585	Diocese of Portucale was established (from the suppressed Diocese of Magnetum and became suffragan of Braga)
688	Diocese of Ossonoba was suppressed
693	Diocese of Caliábria was suppressed
711	Diocese of Aquae Flaviae was suppressed
712	Diocese of Aeminium was renamed as Diocese of Colimbria
714	Diocese of Elbora was suppressed
714	Diocese of Lamego was suppressed
715	Diocese of Egitânia was suppressed
715	Diocese of Pax Iulia was suppressed
716	Diocese of Olisipo was suppressed
716	Diocese of Portucale was suppressed
718	Diocese of Viseu was suppressed
875	Diocese of Viseu was restored (became suffragan of Braga)
880	Diocese of Lamego was restored (became suffragan of Braga)
881	Diocese of Portucale was restored (became suffragan of Braga)
1064	Diocese of Colimbria was renamed as Diocese of Coimbra
1091	Diocese of Portucale was suppressed (to Metropolitan Archdiocese of Braga)
1113	Diocese of Porto was restored (from Metropolitan Archdiocese of Braga and without ecclesiastical province)
1114	Diocese of Dume was suppressed (to Diocese of San Martiño de Mondoñedo–Dume)
1147	Diocese of Lisboa was restored
1165	Diocese of Évora was restored
1189	Diocese of Silves was restored
1191	Diocese of Silves was suppressed
1199	Diocese of Guarda was restored (became suffragan of Santiago de Compostela)
1251	Diocese of Silves was restored
1256.04.27	Diocese of Coimbra exchanged territory with Diocese of Guarda
1256.04.27	Diocese of Guarda exchanged territory with Diocese of Coimbra and Diocese of Viseu
1256.04.27	Diocese of Viseu exchanged territory with Diocese of Guarda
1393.11.10	Diocese of Lisboa was promoted as Metropolitan Archdiocese of Lisboa (with suffragan see Silves)
1403.07.04	Diocese of Guarda lost territory to Diocese of Lamego
1514.06.12	Diocese of Funchal was established (from Diocese of Marruecos and became suffragan of Lisboa)
1533.01.31	Diocese of Funchal was promoted as Metropolitan Archdiocese of Funchal (with suffragan sees Goa and Santiago de Cabo Verde and lost territory to establish Diocese of Goa and Diocese of Santiago de Cabo Verde)
1534.11.03	Diocese of Angra was established (from Metropolitan Archdiocese of Funchal and became suffragan of Funchal)
1540.09.24	Diocese of Évora was promoted as Metropolitan Archdiocese of Évora (with suffragan sees Ceuta, Marruecos and Silves)
1545.05.22	Diocese of Leiria was established (from Diocese of Coimbra and became suffragan of Braga)
1545.05.22	Diocese of Miranda was established (from Metropolitan Archdiocese of Braga and became suffragan of Braga)
1549.08.21	Diocese of Portalegre was established (from Diocese of Guarda and became suffragan of Lisboa)
1551.07.03	Metropolitan Archdiocese of Funchal was demoted as Diocese of Funchal (became suffragan of Lisboa)
1570.06.09	Diocese of Elvas was established (from Metropolitan Archdiocese of Évora, Diocese of Badajoz and Diocese of Ceuta)
1577.03.30	Diocese of Silves was renamed as Diocese of Faro
1585	Metropolitan Archdiocese of Lisboa lost territory to Diocese of Leiria
1614.10.09	Metropolitan Archdiocese of Lisboa lost territory to Diocese of Leiria
1716.11.07	Metropolitan Archdiocese of Lisboa was promoted as Patriarchal See of Lisboa Ocidental (lost territory to establish Metropolitan Archdiocese of Lisboa Oriental and lost suffragan sees Guarda, Portalegre and Santiago de Cabo Verde)
1716.11.07	Metropolitan Archdiocese of Lisboa Oriental was established (from Metropolitan Archdiocese of Lisboa and with suffragan sees Guarda, Portalegre and Santiago de Cabo Verde)
1740.12.13	Patriarchal See of Lisboa Ocidental was renamed as Patriarchal See of Lisboa (gained territory from the suppressed Metropolitan Archdiocese of Lisboa Oriental and gained suffragan sees Guarda, Portalegre and Santiago de Cabo Verde)
1740.12.13	Metropolitan Archdiocese of Lisboa Oriental was suppressed (to Patriarchal See of Lisboa)
1770.06.01	Diocese of Penafiel was established (from Diocese of Porto)
1770.07.10	Diocese of Beja was restored (from Metropolitan Archdiocese of Évora and became suffragan of Évora)
1770.07.10	Diocese of Bragança was established (from Diocese of Miranda and became suffragan of Braga)
1770.07.10	Diocese of Pinhel was established (from Diocese of Lamego and Diocese of Viseu)
1771.06.07	Diocese of Castelo Branco was established (from Diocese of Guarda)
1773.09.10	Diocese of Pinhel lost territory to Diocese of Lamego
1774.04.12	Diocese of Aveiro was established (from Diocese of Coimbra and became suffragan of Braga)
1778.11.11	Diocese of Penafiel was suppressed (to Diocese of Porto)
1780.09.27	Diocese of Bragança was renamed as Diocese of Bragança e Miranda (gained territory from the suppressed Diocese of Miranda)
1780.09.27	Diocese of Miranda was suppressed (to Diocese of Bragança e Miranda)
1881.09.30	Diocese of Aveiro was suppressed (to Diocese of Coimbra, Diocese of Porto and Diocese of Viseu)
1881.09.30	Metropolitan Archdiocese of Braga lost territory to Diocese of Bragança e Miranda and Diocese of Porto
1881.09.30	Diocese of Castelo Branco was suppressed (to Diocese of Guarda and Diocese of Portalegre)
1881.09.30	Diocese of Coimbra lost territory to Diocese of Guarda
1881.09.30	Diocese of Elvas was suppressed (to Metropolitan Archdiocese of Évora and Diocese of Portalegre)
1881.09.30	Diocese of Lamego lost territory to Diocese of Porto
1881.09.30	Diocese of Leiria was suppressed (to Patriarchal See of Lisboa and Diocese of Coimbra)
1881.09.30	Diocese of Pinhel was suppressed (to Diocese of Guarda)
1918.01.17	Diocese of Leiria was restored (from Patriarchal See of Lisboa and Diocese of Coimbra and became suffragan of Lisboa)
1922.04.20	Diocese of Vila Real was established (from Metropolitan Archdiocese of Braga, Diocese of Bragança e Miranda and Diocese of Lamego and became suffragan of Braga)
1938.08.24	Diocese of Aveiro was restored (from Diocese of Coimbra, Diocese of Porto and Diocese of Viseu and became suffragan of Braga)
1956.07.18	Diocese of Portalegre was renamed as Diocese of Portalegre–Castelo Branco
1957.03.25	Patriarchal See of Lisboa lost territory to Diocese of Leiria
1966.05.29	Military Vicariate of Portugal was established
1969	Titular Episcopal See of Aquæ flaviæ was restored
1969	Titular Episcopal See of Caliábria was restored
1969	Titular Episcopal See of Dume was restored
1969	Titular Episcopal See of Elvas was restored
1969	Titular Episcopal See of Magnetum was restored
1969	Titular Episcopal See of Penafiel was restored
1969	Titular Episcopal See of Pinhel was restored
1975.07.16	Diocese of Santarém was established (from Patriarchal See of Lisboa and became suffragan of Lisboa)
1975.07.16	Diocese of Setúbal was established (from Patriarchal See of Lisboa, Metropolitan Archdiocese of Évora and Diocese of Beja and became suffragan of Lisboa)
1977.11.03	Diocese of Viana do Castelo was established (from Metropolitan Archdiocese of Braga and became suffragan of Braga)
1984.05.13	Diocese of Leiria was renamed as Diocese of Leiria–Fátima
1986.07.21	Military Vicariate of Portugal was promoted as Military Ordinariate of Ordinariato Castrense de Portugal
1996.05.27	Diocese of Bragança e Miranda was renamed as Diocese of Bragança–Miranda