洛伦佐图书馆是由梅第奇家族世代积累的图书收藏及18世纪以后所增添的外来书籍所组成的。该家族图书馆的创始人是“老头”科西莫(1389-1464)。他的父亲,米蒂齐的乔万尼·迪比齐,只拥有三本书:福音书、圣玛格丽特传说和一卷布道文。但科西莫曾在罗伯特·德罗西办的学院中受过人文主义趣味的熏陶。他曾经跟收藏家尼古洛·尼古利和弗朗西斯科·巴巴罗一起计划去巴勒斯坦搜寻古希腊文 Lorenzo Library is a collection of books collected by the Medici family generations and foreign books added after the 18th century. The founder of this family library is “Old Man” Cosimo (1389-1464). His father, Giovanni DiBizi of Mittiz, had only three books: the Gospel, the saint Margret legend and a roll of etiquette. But Cosimo had been influenced by the humanist interest in the college run by Robert De Rossi. He had planned to go to Palestine to search for ancient Greek with collectors Nikolai Nicholli and Francisco Barbaro