The distance between Cripplegate and Bishopsgate is not great, and much of the space outside the walls was occupied by Moorditch. Still, in 1415, Thomas Falconer, then Mayor, opened a postern in the wall, where Moorgate Street now is, for the benefit of the hay and wood carts coming to the markets of London. He must also have made a road across the morass of Moorfields, for that place was not drained until more than a century afterwards. The site of Bishopsgate is marked by two tablets on the houses at the corners of Camomile and Wormwood Streets respectively (Nos. 1 and 64 Bishopsgate Street Without), inscribed with a mitre, and these words, 'Adjoining to this spot Bishopsgate formerly stood.'[20] Bishopsgate was named after Erkenwald, Bishop of London (d. 685), son of Offa, King of Mercia, by whom it was erected. At first the maintenance of the gate was considered to devolve upon the Bishop of London, but after an arrangement with the Hanse Merchants it was ruled that the bishop 'is bound to make the hinges of Bysoppsgate; seeing that from every cart laden with wood he has one stick as it enters the said gate.' The liability was limited to the hinges, for after some dispute it was (1305) 'awarded and agreed that Almaines belonging to the House of the Merchants of Almaine shall be free from paying two shillings on going in or out of the gate of Bishopesgate with their goods, seeing that they are charged with the safe keeping and repair of the gate.' The line of the wall bears southward to Aldgate, and is marked by the street named Houndsditch. The earliest form of the name Aldgate appears to have been Alegate or Algate, and, therefore, has nothing to do with Old, the _d_ being intrusive. Within the walls was the great house of Christ Church, founded by Queen Maud or Matilda, wife to Henry I., in the year 1108, and afterwards known as the Priory of the Holy Trinity within Aldgate. In 1115 the famous Cnichtengild, possessors of the ward of Portsoken (which was the soke without the port or gate called Aldgate), presented to the priory all their rights, offering upon the altars of the church the several charters of the guild. The King confirmed the gift, and the prior became _ex officio_ an alderman of London. This continued to the dissolution of the religious houses, when the inhabitants of the ward obtained the privilege of electing their own alderman. Stow tells us that he remembered the prior riding forth with the Mayor as one of the aldermen. 'These priors have sitten and ridden amongst the aldermen of London, in livery like unto them, saving that his habit was in shape of a spiritual person, as I myself have seen in my childhood.' The old name of Christ Church is retained in St. Katherine Cree or Christ Church, on the north side of Leadenhall Street, which was built in the cemetery of the dissolved priory. This church was taken down in 1628, and the present building erected in 1630.