Guglielmo Becchi was born in Florence around 1411 to Antonio of a noble family. At a young age, he entered the convent of Santo Spirito in his hometown and became a member of the Order of the Hermits of St. Augustine. The years he spent in Florence were the most fruitful for his work as a writer, philosopher, and theologian. He was part of the humanist circle that grew up around Cosimo de' Medici, and in 1436 he dedicated a pamphlet, De Cometa, to Cosimo's son Piero, written on the occasion of the appearance of a comet that year.
Becchi's activity in expounding and commenting on Aristotle's philosophy is noteworthy. The Laurentian Library in Florence and the Angelica Library in Rome preserve some of his manuscripts, the fruit of his study and teaching during these Florentine years, even if some of them date back to a later period: the Commentarium super decem libros Ethicorum Aristotelis written in 1455, the In libros Oeconomicorum Aristotelis of 1467 and the Super libros octo Polyticorum Aristotelis of 1476, as well as the Quaestiones super tres libros Aristotelis de anima, the Philosophia moralis tripartita and the Expositio Isagoges Porphyrii et categoriarum Aristotelis . Cited by Vespasiano da Bisticci in his Lives of Illustrious Men of the 13th Century. XV, died in Florence in an unspecified year, between 1481 and 1495-96. (Treccani, sub vocis ).