After the central tower collapsed in 1450, much of the nave was rebuilt in the Perpendicular (later Gothic) style, when the side-isles were also added. But work stopped in the 1540's during the upheavals of the Protestant Reformation. To this day there are unfinished pillars and mismatched arches under the central tower.
In 1604 the church was re-founded with a Dean and Chapter by King James I. The Chapter was dissolved again under Oliver Cromwell (1649-60), but then reinstated once more in 1660 when the monarchy was restored. The Book of Common Prayer came into use in 1662.
In 1836 Ripon Minster became a Cathedral with the creation of the first new diocese in England since the Reformation.