The work, dated "A.D. M. MCCCCXXXVII" (1437) on the cartouche, was commissioned by Giovanni Vitelleschi, Papal military commander and archbishop of Florence.
A piece created in 1437, marked with the date "A.D. M. MCCCCXXXVII", was commissioned by Giovanni Vitelleschi, a high-ranking official in the Papal army and bishop of Florence.