The principal authority for the history of the site and buildings of the college is the _Historiola_ of Josselin, a fellow of Queen's College, and Latin secretary to Archbishop Parker. According to his narrative, the guild of Corpus Christi had begun seriously to entertain the idea of building a college as early as 1342, for about that date, he says:-- "Those brethren who lived in the parishes of S. Benedict and S. Botolph, and happened to have tenements and dwelling-houses close together in the street called Leithburne Lane, pulled them down, and with one accord set about the task of establishing a college there: having also acquired certain other tenements in the same street from the University. By this means they cleared a site for their college, square in form and as broad as the space between the present gate of entrance (_i.e._ by S. Benet's Church) and the Master's Garden."[48] The original mover in the scheme for a guild college may well have been the future master, Thomas of Eltisley, chaplain to the Archbishop of Canterbury and rector of Lambeth. Among the Cambridge burgesses William Horwood, the mayor, was treasurer of the Guild in 1352, and used the mayoral seal for guild purposes, because the seals of the alderman and brethren of the Guild "are not sufficiently well known." Another mayor of Cambridge about this time, Robert de Brigham, was a member of the other associated Guild of S. Mary. How the support of Henry, Duke of Lancaster--the "Good Duke," as he was called--was secured does not appear, but he is mentioned as alderman of the Guild, in the letters patent of Edward III. in 1352, establishing the College. His influence perhaps may have been gained through Sir Walter Manny, the countryman and friend of Queen Philippa, whose whole family was enrolled in the Guild.