 At this period of time, the value to the Lord was £0.5 with a taxable value of 1.5 geld units, where in the same year the "Tenant-in-chief was also King William.In about 1105, Richard Mauleverer granted the church and some lands at Allerton to Holy Trinity Church of York.During the Second World War, Allerton Castle, then home to Lord Mowbray, became the Headquarters of the Sixth Group of RAF Bomber Command which was the Royal Canadian Air Force component of the command.