Church of St Laurence, Upminster Church of St Laurence, Upminster The church of St Laurence, Upminster, is the Church of England parish church in Upminster, England. It is a Grade I listed building. It is the historic minster or church from which Upminster derives its name, meaning 'upper church', probably signifying 'church on higher ground'. The place-name is first attested as 'Upmynster' in 1062, and appears as 'Upmunstra' in the Domesday Book of 1086. Alice Perrers, mistress of King Edward III, was buried in the church or churchyard in 1400. There is no memorial to mark her grave. She had three illegitimate children by the
Agnes Dunbar (mistress) of King David II around 1369, as payments to her began then. A payment of 1000 merks, a very large sum at that time, was arranged for her a month before the king died suddenly in February 1371, which indicates that he had been very likely planning to marry her. On 21 November 1372 she married Sir James Douglas of Dalkeith. Their son was James Douglas, 1st Lord Dalkeith. Their great-grandson was James Douglas, 1st Earl of Morton. S. Boardman, "The Early Stewart Kings of Scotland" Agnes Dunbar (mistress) Agnes Dunbar (fl. late 14th century) was a mistress of King