He escaped unharmed, but the death of his brother in the "Pazzi Conspiracy" made him abandon his frivolous love poetry and embrace the humanistic intellectualism of such scholars as Angelo Poliziano (PALL-itz-ee-an-oh)  and Giovanni Pico della Mirandola, as well as artists like Sandro Botticelli.  
On Easter Sunday in 1478, a rival family with the backing of Pope Sixtus IV attempted to assassinate him and his brother during Mass. He escaped unharmed, but the death of his brother in the "Pazzi Conspiracy" made him abandon his frivolous love poetry and embrace the humanistic intellectualism of such scholars as Angelo Poliziano (PALL-itz-ee-an-oh)  and Giovanni Pico della Mirandola, as well as artists like Sandro Botticelli.  FTP, name this patron of the arts and ruler of Florence after the death of his father Piero.
On Easter Sunday in 1478, a rival family with the backing of Pope Sixtus IV attempted to assassinate him and his brother during Mass.
Lorenzo de' Medici (prompt on early "Pazzi Conspiracy" buzz)