Notwithstanding the internal evidence of the improbability of Cornelius’s account of Coster and his invention, its claims to credibility are still further weakened by those persons who have shown themselves most wishful to establish its truth. Lawrence Janszoon, whom Meerman and others suppose to have been the person described by Cornelius as the inventor of printing, appears to have been custos of the church of St. Bavon at Harlem in the years 1423, 1426, 1432 and 1433. His death is placed by Meerman in 1440; and as, according to the narrative of Cornelius, the types and other printing materials were stolen on Christmas eve 1441, the inventor of typography must have been in his grave at the time the robbery was committed. Cornelius must have known of his master’s death, and yet in his account of the robbery he makes no mention of Coster being dead at the time, nor of the business being carried on by his descendants after his decease. It was at one time supposed that Coster died of grief on the loss of his types, and on account of the thief claiming the honour of the invention. But this it seems is a mistake; he was dead according to Meerman at the time of the robbery, and the business was carried on by his grandchildren. Koning has discovered that Cornelius the bookbinder died in 1522, aged at least ninety years. Allowing him to have been ninety-two, this assistant in Coster’s printing establishment, and who learnt the account of the invention and improvement of the art from Coster himself, must have been just ten years old when his master died; and yet upon the improbable and uncorroborated testimony of this person are the claims of Coster founded.