All Saints' Church, Northampton situated in the centre of Northampton, is a Parish Church of the Church of England and Northampton's Civic Church. It is a Grade I listed building. Simon de Senlis' church of All Hallows, Northampton, England, lasted with medieval alterations until disaster struck the town on 20 September 1675. Most of the old town was destroyed by fire, not unlike the Great Fire of London in 1666 (see Great Fire of Northampton). The fire began in St. Mary's Street, near the castle, and the inhabitants fled to the Market Square, but then were forced to evacuate, leaving the buildings to burn, including All Hallows: