Mr. James Tait, the author of the excellent life of Wat Tyler in the _Dictionary of National Biography_, mentions 'a Proclamation in Thanet Church, on the 13th June, [which] ran in the names of Wat Tyler and John Rackstraw, but the St. Albans insurgents who reached London on Friday the 14th were divided as to which was the more powerful person in the realm, the King or Tyler, and obtained from the latter a promise to come and shave the beards of the abbot, prior and monks; stipulating for implicit obedience to his orders.' The men of Essex were outside Aldgate in great numbers, and as the day advanced the leaders became fearful as to their condition. They had no means of breaking into the city, and if they remained long where they were they would inevitably have been starved. 'Walworth guarded the bridge, and sent to the peasants, bidding them, in the name of the King and the city, come no nearer to London.'[41] If there had been no treachery it would have been easy to keep the rebels outside till they were forced by hunger to desist from their endeavours to enter, for time was on the side of the besieged, but the peasants had friends and well-wishers within, and the city being divided against itself, fell. Mr. Trevelyan writes: 'A committee of three aldermen rode out to Blackheath to deliver [Walworth's] message. Two of them, Adam Carlyll and John Fresh, faithfully performed their mission. But the third alderman, named John Horn, separated himself from his two colleagues, conferred apart with the rebel leaders, and exhorted them to march on London at once for they would be received with acclamation into the city. After this treachery he did not fear to return to the city, and brought some of the peasants with him and lodged them in his house. He even advised Walworth to admit the mob.'[42] The rioters burnt the Marshalsea prison, situated in the High Street, Southwark, and set the prisoners free. Others gutted Lambeth Palace to show their hatred of the archbishop, but he was not there. On Thursday morning, 13th June, Horn, the disaffected alderman, rode out to Blackheath to confer with the rebels, and he urged them to come to the bridge, where they would find friends. He had an ally in Walter Sybyle, alderman of Bridge Ward, who in virtue of his office took command on the bridge, and he announced that he would let the rebels in by the bridge gate in spite of all opposition. Then Walworth, the Mayor, finding that he was powerless, gave leave to Wat Tyler's followers to enter the city on condition that they paid for everything they took, and did no damage.