Buonconte was a son of Guido di Montefeltro, and lost his life in the battle of Campaldino in the Val d’Arno. His body was never found; Dante imagines its fate.

Ruskin, Modern Painters , III 252, remarks:⁠—

“Observe, Buonconte, as he dies, crosses his arms over his breast, pressing them together, partly in his pain, partly in prayer. His body thus lies by the river shore, as on a sepulchral monument, the arms folded into a cross. The rage of the river, under the influence of the evil demon,

unlooses this cross