1108 The Church of the Holy Trinity, Aldgate, is founded by Queen Maud. 1109 Around this time, Henry I establishes a town around the crossroads.
(His son Gilbert disputes the gift but changes his mind when he develops leprosy).
The Priory is given half the parish of Pattishall in Northamptonshire. 1221 The Priory publishes The Customal, a set of rules stating how the market should operate.
The roof on the Priory's presbytery falls in but is quickly repaired.
1217 Itinerant justices come to Dunstable and take the people's oath of allegiance to Henry III. The prior enforces his claims of tithe of hay against many parishioners.
The English barons with Louis, Dauphin of France, in arms against the king, halt for a night in Dunstable after their defeat at Lincoln, and badly damage the church. Robert, Bishop of Lismore, and Hugh, Bishop of Lincoln, at Dunstable.