St Michael's Church was probably built by the Reigny family; earliest records of it date to the Taxation of Norwich in 1254, where it was referred to as St Michael de Renny and was valued at four marks. The parish at one time consisted of the Manor of Michaelston-le-Pit and the church was an advowson included with the manor in the 15th and 17th centuries. By 1563, a cleric was in residence.
The church has many items which date to medieval times, including a baptismal font which was lost at the time of the Battle of St Fagans and was later discovered in a local field. It also has the only triple decker pulpit found in the Vale of Glamorgan. The lychgate of the churchyard is a memorial to local soldiers killed in World War I.
References:Sigmaringen Castle was first mentioned in the year 1077 in the chronicles of Petershausen monastery. The oldest parts of the castle are concealed beneath the alterations made during the 17th and the 19th centuries. The secret of the earliest settlement built on this defendable rock will never be fully revealed: large-scale excavation work would be necessary, which the extensive land development renders impossible. Judging from the many Roman remains unearthed in the area around Sigmaringen, the 12th century keep known as the 'Roman Tower' could be traced back to a Roman predecessor.
The castle remains that have been preserved (gate, great hall and keep) date back to the Staufer period around 1200. The castle remains were integrated into subsequent buildings. The foundations of the castle buildings are to a large extent identical to the surrounding castle wall.
These remains give us a good idea of how the castle might have looked during the 12th century.