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The Deanery of Guernsey was officially part of the Diocese of Winchester since 1568. This meant that the British Channel Island of Guernsey was under the legal jurisdiction of the Bishop of Winchester and was responsible for its episcopal oversight up until March of the 2014. Due to a breakdown in the relationship between the Dean of Jersey and the Bishop of Winchester, the Bishop of Dover of the Diocese of Canterbury provided temporary episcopal oversight and legal responsibility of administrative affairs until 2018. The Archbishop of Canterbury's Commission reported later in 2019, in response to the future management of the Channel Islands' Deaneries, made a number of recommendations that aimed to strengthen the relationship between Bishop and Dean and Diocese and Deanery. One of these recommendations were that the Deaneries of Guernsey and Jersey should now be attached to the Diocese of Salisbury. In 2020, the General Synod approved the transfer, and on 15 November 2022 the Deanery of Guernsey was attached to the Diocese of Salisbury.