MOUNTNESSING, a parish in the hundred of CHELMSFORD, county of ESSEX, 2 miles (S. W.) from Ingatestone, containing 728 inhabitants. The living is a discharged vicarage, in the archdeaconry of Essex, and diocese of London, rated in the king's books at £ LI, endowed with £400 private benefaction, and£400 royal bounty. F. B. Bramston, Esq. was patron in 1802. The church is dedicated to St. Giles. Richard Beyley, in 1743, bequeathed a house and land in support of a school for teaching poor children. A priory of Augustine canons was founded, in the reign of Stephen, at Thoby in this parish, by Michael Capra, Roise his wife, and William their son: it was dedicated to St. Mary and St. Leonard, and, at the dissolution, had a revenue of £75. 6. 10.