The parish church of St Mary the Virgin is one of the oldest village churches in Hertfordshire, with a Saxon wall and rare chalk rood (crucifix) dating back to the middle 10th century. St Mary’s also houses a fine Purbeck marble effigy, most probably of William de Lanvalei, one of the Magna Carta barons.

St Marys is situated at the northern end of the village in Church End overlooking the ford.

st mary's church