This contribution deals with a central theme of the training of Leon Battista Alberti: studies, as hypothesized by G. Mancini (1882, 1887 and 1911), at the school of Gasparino Barzizza in Padua, made between 1415 and 1421. Are reviewed data corroborating this discipleship: two letters of Barzizza in ms. Riccardi 779; some acts which show links of the family of Alberti to rapresentative members of Paduan Academy; an act of 1422, published in the appendix, moreover, attests that Leonardo, the son of Coluccio Salutati, frequented to Padua the circle of Alberti, legitimizing the hypothesis that for this track Leon Battista has known the 'De laboribus Herculis' of Coluccio: the herculean theme, central for Salutati and for Civil Humanism, is made object of parody by Alberti in the 'Vita Sancti Potiti', in 'Momus', and also in 'Canis' and 'Musca' (R. Rinaldi, 2002).
