The only historical document concerning Leonardo's sexual life is an accusation of sodomy made in 1476, while he was still at the workshop of Verrocchio. Florentine court records show that on April9, 1476, an anonymous denunciation was left in the "tamburo" (letter box) in the Palazzo della Signoria (town hall) accusing a young goldsmith and male prostitute, Jacopo Saltarelli (sometimes referred to as an artist's model) of being "party to many wretched affairs and consents to please those persons who request such wickedness of him". The denunciation accused four people of sodomizing Saltarelli: Leonardo da Vinci, a tailor named Baccino, Bartolomeo di Pasquino, and Leonardo Tornabuoni, a member of the aristocratic Tornabuoni family. Saltarelli's name was known to the authorities because another man had been convicted of sodomy with him earlier the same year. Charges against the five were dismissed on the condition that no further accusations appear in the "tamburo". The same accusation did in fact appear on June 7, but charges were again dismissed. The charges were dismissed because the accusations did not meet the legal requirement for prosecution: all accusations of sodomy had to be signed, but this one was not. (Such accusations could be made secretly, but not anonymously.) There is speculation that since the family of one of the accused, Leonardo Tornabuoni, was associated with Lorenzo de' Medici, the family exerted its influence to secure the dismissal. Sodomy was theoretically an extremely serious offense, carrying the death penalty, but its very seriousness made it equally difficult to prove. It was also an offence for which punishment was very seldom handed down in contemporary Florence, where homosexuality was sufficiently widespread and tolerated to make the word "Florenzer" (Florentine) slang for homosexual in Germany.