The
Diocese of Glasgow originates in the period of the reign of
David I,
Prince of the Cumbrians, but the earliest attested bishops come from the 11th century, appointees of the
Archbishop of York. The
episcopal seat was located at
Glasgow Cathedral. In 1492, the diocese was elevated to an archdiocese by
Pope Innocent VIII. After the Scottish church broke its links with Rome in 1560, the archbishopric continued under the
independent Scottish church until 1689 when
Episcopacy in the established
Church of Scotland was finally abolished in favour of
Presbyterianism, requiring bishopric continuity to occur in the disestablished
Scottish Episcopal Church. In the following centuries Catholicism slowly began a process of re-introduction, culminating in the
Roman Catholic Relief Act 1829. A new papally-appointed archbishopric in the Catholic Church was introduced when the Vicariate Apostolic of the Western District was elevated to archdiocese status on 4 March 1878 on the
restoration of the Scottish hierarchy, and then to
metropolitan archdiocese status on 25 May 1947. ==Pre-Reformation office holders==