=St. Mary Mounthaw= was situated on the west side, about the middle of Old Fish Street Hill, and derived its name “Mounthaw” or “Mounthault” from its having belonged to the family of Mounthaul or Monhalt who owned a house in the parish. It was destroyed by the Great Fire and its parish annexed to that of St. Mary Somerset, its site being made into a burying-ground for the inhabitants. The earliest date of an incumbent is 1344. The patronage of the church was in the hands of: The family of Mounthault, who sold it to Ralph de Maydenstone, about 1234, who gave it to his successors the Bishop of Hereford, in whose successors it continued till 1666, when the church was burnt down and the parish annexed to St. Mary Somerset, who shared the alternate patronage of that church up to 1776. A chantry was founded here by John Gloucester, late citizen, before 1345, to which John Whutewey was admitted, February 18, 1381. Two monuments only are mentioned by Stow, one in memory of John Gloucester, alderman in 1345, and John Skip, Bishop of Hereford, 1552. Twenty-four boys and twenty girls were taught and clothed by the gentlemen of Queenhithe Ward. The parish, together with others, had a gift of 8s. per annum left by Randolph Bernard, and 40s. per annum left by Robert Warner. Boss Alley, now vanished, preserved the memory of a “boss” of water placed there by the executors of Whittington. Beside Boss Alley was a house once belonging to the Abbots of Chertsey in Surrey, as their inn when they came to town. It was afterwards known as Sandie House. “I think the Lord Sands has been lodged there.” Trig Lane follows, leading down to Trig Stairs: A pair of stairs they found, not big stairs, Just such another pair as Trig Stairs. Broken Wharf is mentioned so far back—_e.g._ 1329 and 1349—that one suspects that the wall, not the wharf, was at this place broken. In 1598 a stone house stood beside the wharf, with arched gates. It belonged in the forty-third year of Henry III. to Hugh de Bygod; in the eleventh of Edward III. to Thomas Brotherton, the King’s brother, Earl of Norfolk, Marshal of England; and in the eleventh of Henry VI. to John Mowbray, Duke of Norfolk. Within the gate of this house (now belonging to the city of London) is lately—to wit, in the years 1594 and 1595—built one large house of great heith called an engine, made by Bevis Bulmar, gentleman, for the conveying and forcing of Thames water to serve in the middle and west parts of the city. The ancient great hall of this messuage is yet standing, and pertaining to a great brewhouse for beer (Stow’s _Survey_).