Southover is a parish in Lewes, Sussex.
From GenUKI:
LEWES is the county town, union, considerable market and borough town, and station on the Brighton and South Coast Railway, in the Eastern division of the county, diocese of Chichester, archdeaconry and rural deanery of Lewes, giving name to the rape and union, but having suburbs in Pevensey rape.
The union comprises eight parishes, viz.: All Saints; Castle Precincts; St. Anne or St. Peter and St. Mary Westout; St. John the Baptist,
Southover; St. John-under-the-Castle, St. Michael, St. Thomas-in-the-Cliffe, and South Malling.
St. John the Baptist,
Southover, is a rectory value £97 per annum, with residence, in the gift of the Lord Chancellor, and held by the Rev. John Scobell, M.A. of Balliol College, Oxford, and rural dean.
The priory of Lewes, whose ruler had a seat in Parliament, was founded in the reign of William the Conqueror by Gundrada, one of the daughters of that monarch, and her husband William, Earl Warrenne: on its dissolution by Henry VIll. the conventual buildings were mostly destroyed, and the remains are at present inconsiderable: in 1845, during the formation of the South Coast Railway, the remains of the illustrious founders were discovered, preserved in leaden chests, inscribed with their names; these relics have been deposited. in a beautiful mausoleum, built for the purpose, on the south side of the adjacent church of
Southover.
See:
https://www.genuki.org.uk/big/eng/SSX/Lewes/TheParishChurchofStJohntheBaptist