Probably this resolution served as a quietus of the efforts of the Fitzwalters to establish or re-establish the right of jurisdiction over the citizens of London. It seems likely that these were endeavours to reinstitute ancient privileges rather than to create new. The document in the "Liber Custumarum," used in support of the claims of Robert Fitzwalter in 1303, contains a reference to the Friars Preachers, which would lead to the supposition that it was drawn up at the time; but Riley believes that it was remodelled, perhaps only to the extent of this interpolation, and that otherwise it was a copy of an earlier pronouncement pertaining to the days of the first Robert Fitzwalter, who would have been the actual owner of Baynard Castle. This has an important bearing on the reality of the dual or reciprocal obligations, which were apparently embodied in a compact between the Mayor and Citizens of London on the one part, and their military chief or champion on the other. Thus it will be necessary to glance at the personal history of the elder Robert Fitzwalter, on which something has been already said. According to the Chronicle of Dunmow and other early records, the principal reason of Fitzwalter's insatiable hatred of King John was that the monarch had attempted the chastity of Matilda, Robert's fair daughter, who, by the way, is identified by Anthony Munday and other Elizabethan playwrights with the Maid Marian of Robin Hood. Dugdale is disposed to accept this story; but, granting that it is true, it hardly suffices to explain Fitzwalter's pre-eminence in the forces of the rebellious Barons. This seems to have been due to his influence with the wealthy citizens of London, who were among the staunchest opponents of the astute and tyrannous sovereign. On May 24, 1215--the Sunday next before Ascension Day, when many of the inhabitants would have been in attendance on Divine service--the army of the Barons, marching from Ware, were permitted to enter the City, unopposed, through the gate of Aldgate. Fitzwalter's position as Castellan, and his connexion with the Priory of Holy Trinity at Aldgate, furnish an easy and natural explanation of this proceeding. In 1217 the citizens of London raised a force of 20,000 men for the assistance of the Dauphin of France against King Henry and his guardian William Marshal, Earl of Pembroke, and Robert Fitzwalter acted as commander. He died in 1234, and was buried before the high altar in the church of Dunmow Priory. In the description of the banner delivered to Fitzwalter by the Mayor we have the earliest mention of the assumption of any sort of arms by the City of London. It may be noted that the sword is stated by some heraldic authorities to have been argent, whilst by others this detail is omitted. In Saxon times York also had its standard-bearer. The "Great Gate" of St. Paul's was probably the Northern Gate.