Although the church was restored in the mid 19th century, much of the Norman architecture remains including the arch of the west door and also the south door which was made of yew decorated with elaborate iron scrollwork in about 1250. Jerusalem crosses were carved into the stonework around it by Gerald de Furnival and his sons who went to the crusades with Richard I. Thomas died in the crusades and his heart was brought back by his brother.
The Augustinian Priory of St Mary and St Cuthbert was founded about 1120 by the lord of the manor, William de Lovetot. At the dissolution the Priory cloisters and other monastic buildings were destroyed, leaving only a section of the original building which became the parish church. Some of the ruined monastic buildings can still be seen. About 1300 the Prior, John de Tickhill, produced a beautiful illuminated manuscript of a book of psalms with drawings of the medieval people of Worksop.
The church contains the tombs of Sir Thomas Neville and his daughter Maud, who married John Talbot, 1st Earl of Shrewsbury. Sir Thomas Neville was the brother of Ralph Neville, Earl of Westmoreland who was the grandfather of kings Edward IV and Richard III. The Lady Chapel was badly damaged during the dissolution, but was restored and rejoined to the nave in 1929. In 1935 the north transcept was added and in 1970 Laurence King redesigned the east end of the building.
For further information please go to Worksop Priory History, Worksop History, Harrison's Survey of 1636, The Church Wardens' Book