King became the principal founder of the leading Anglo-Catholic theological college in the Church of England, St Stephen's House, Oxford, now a Permanent Private Hall of the University of Oxford. To the world outside, King was known at this time as an Anglo-Catholic and one of Edward Pusey's most intimate friends, but in Oxford, and especially among the younger men, he exercised influence by his charm and sincerity. King had also been devoted to his mother, who assisted him at Cuddesdon and Oxford by keeping his house and entertaining guests as his position required. King never married and his mother died in 1883. A leading member of the English Church Union, King fought prosecutions in lay courts under the Public Worship Regulation Act 1874. In 1879 King's writings concerning Holy Communion were criticised as "Romish" in a pamphlet by a local vicar.
In 1888, a complaint by a churchwarden from Cleethorpes, funded by the Church Association, concerning a service conducted at St Peter at Gowtschurch in Lincoln, was brought against King. He stood accused of tolerating six ritualistic practices. To avoid King's prosecution in a lay court under the Public Worship Regulation Act 1874, Benson revived his own archiepiscopal court. In his "Lincoln Judgment", he found against King on two counts and also required him to conduct the manual acts during the prayer of consecration in the service of Holy Communion in such a way that the people could see them. Benson specifically allowed the use of lighted candles, and mixing of elements, as well as the eastward position during the service. The Church Association appealed against the ruling to the Judicial Committee of the Privy Council, but was denied in 1890. King loyally conformed his practices to the archbishop's judgment. Some considered the process a repudiation of the anti-ritualism movement, though it proved physically and emotionally taxing for King, whose physique had never been particularly robust. A decade later, after Frederick Temple succeeded Benson as Archbishop of Canterbury, he and William Maclagan, Archbishop of York, prosecuted two priests for using incense and candles, and notified King of their condemnation, which he abided. Later, many of King's liturgical practices became commonplace, including making the sign of the cross during the absolution and blessing, and mixture of elements during the service, for which the criticisms had been upheld as an innovation.
King's pastoral work as Bishop
As bishop, King devoted himself to pastoral work in his diocese, particularly among the poor, both farmers and industrial workers, as well as condemned prisoners. He supported the Guild of Railway men as well as chaplains in the Boer War and missionaries. In 1909 he visited Oxford in his episcopal capacity for the 400th anniversary of Brasenose College.
Death and legacy
King died in Lincoln as Matins sounded on 8 March 1910 and was interred in the cathedral's cloister. The calendar of the Church of England remembers King with the status of a "lesser festival" or "black letter day" on 8 March, the date of his death. In 1913 a lady chapel was erected in King's memory at St Clement's Church, Leigh-on-Sea, by his nephew, Rev. Canon Robert Stuart King. In 2010 Rowan Williams, Archbishop of Canterbury, scheduled an episcopal visit to Lincoln to commemorate the 100th anniversary of King's death. In addition to citing King's contributions to pastoral theology and reinvention of episcopal practices, in an interview with the local church paper Williams called the former prosecution an embarrassment to the church and the state.