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
Alice Perrers King Edward, all while their relationship was a secret from his wife, Queen Philippa and the public. In 1364, aged 16, Perrers gave birth to a son later named Sir John de Southeray (c. 1364-1383). John later married Maud Percy, daughter of Henry Percy, 3rd Baron Percy, and his first wife Mary of Lancaster. A year later in 1365, Perrers gave birth to Jane (c. 1365-unknown). Jane married Richard Northland. Aged 18, Alice gave birth to her third child, Joan (c. 1366-bef January 1431). Joan married Robert Skerne, a lawyer who served as a tax official and a Member of