The church, which is dedicated to St. Helen, is a fine structure of oolite stone, probably one of the largest in the neighbourhood, except the collegiate church of Tattershall. It consists of tower, nave, north and south aisles, south porch and chancel. The body of the church was restored in 1873, and re-opened on June 13th of that year, at a cost of more than £2,000, by J. Banks Stanhope, Esq., Lord of the Manor; the then rector, the Rev. W. Sharpe restoring the chancel, and the parishioners and other friends the tower. The latter consists of three tiers, having a small square window in the south and north walls below, with a two-light floriated window on the west. In the tier above are two-light windows on all four faces. At the summit it has battlements and four tall pinnacles. There are three bells, the date of the largest being 1627. The body of the church is also battlemented, and has pinnacles, the westernmost of these having the figures, within a niche, of St. George and the dragon. The south porch has an early English doorway within, the outer one being modern. In the moulding above the inner doorway is a curiously crowned head, probably representing the Empress Helena, the patron saint; other curious devices running down the moulding on each side. To the right of the inner doorway are initials M.S., date 1681. The font has a large octagonal bowl, with heads at the angles, and elaborate trefoil devices on the faces; the shaft is plain, octagonal, the pediment a stone cross. [Picture: St. Helen’s Church, Mareham-Le-Fen]