Diocese of the Isles

The diocese in its full form included the Outer Hebrides, most of the Inner Hebrides (including Iona, Skye, Raasay, Canna, Eigg, Coll, Tiree, Mull, Colonsay, Islay, Jura, Gigha – but not Lismore, Kerrera, Seil or Luing, all under the Bishop of Argyll), the Isle of Bute and the Isle of Arran, as well as the Isle of Man (Mann). The diocese may have originally contained Galloway, a suggestion thought to explain the possible attacks of Wimund on Bishop Gilla Aldan of Whithorn.

Extent of the diocese in about 1300.

From the 11th century until the creation of the Archdiocese of Niðarós, Mann and the Isles appear to have been under the jurisdiction of the Archbishop of York. Thereafter, it was formally under Niðarós (modern Trondheim). The diocese was severed after the English acquisition of Mann in the 14th century.

In 1472, however, the Norwegian territories of Orkney and Shetland became Scottish, as part of the marriage settlement of King James III of Scotland, following which the Bishopric of St. Andrews was elevated to an archdiocese, and the Isles (but not Mann) came under her jurisdiction.

The Bishopric's links with Rome ceased to exist after the Scottish Reformation, but continued, apart from temporary abolition between 1638 and 1661, under the episcopal Church of Scotland until the Revolution of 1688. Episcopacy in the established church in Scotland was permanently abolished in 1689 but it continued in the now nonconformist Scottish Episcopal Church until 1702 with the death of Bishop Archibald Graham. The diocese then came under the care of the Bishop of Ross or Caithness or Moray variously. A new united Scottish Episcopal Diocese of Argyll and The Isles was established in 1847 with Bishop Alexander Ewing as the first Bishop living at Lochgilphead.

Source: Argyll Bute Inverness Ross. Man not included.

•  This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Diocese of Argyll and the Isles". Catholic Encyclopedia. New York: Robert Appleton Company.
•  This article incorporates text from a publication now in the public domain: Herbermann, Charles, ed. (1913). "Ancient Diocese of Sodor and Man". Catholic Encyclopedia. New York: Robert Appleton Company.
• Cowan, Ian Borthwick; Easson, David Edward (1976). Medieval Religious Houses, Scotland: with an appendix on the houses in the Isle of Man. London: Longman. ISBN 978-0-582-12069-3.
• Dowden, John (1912), Thomson, J. Maitland (ed.), The bishops of Scotland: being notes on the lives of all the bishops, under each of the sees, prior to the reformation, James Maclehose and sons
• Thomas, Sarah E. (2010). "The Diocese of Sodor between Niðaróss and Avignon — Rome, 1266–1472". Scottish Society for Northern Studies. 41: 22–40.
• Watt, D. E. R. (2003). Fasti Ecclesiae Scoticanae medii aevi ad annum 1638. Edinburgh: Scottish Record Society. ISBN 978-0-902054-19-6.
• Woolf, Alex (2003), "The Diocese of Sudreyar", in Imsen, Steiner (ed.), Ecclesia Nidrosiensis 1153–1537: Søkelys på Nidaroskirkens og Nidarosprovinsens historie (in English and Norwegian), Trondheim: Tapir Academic Press, pp. 171–81, ISBN 978-8251918732

• Bishop of the Isles, list of bishops of the Isles
• Diocese of Sodor and Man