The Flagellation (detail)

The figures at the right are probably portraits and there are many attempts by scholars to identify them. The youthful, barefoot figure in the group, clothed only in a plain red garment is traditionally identified as Duke Oddantonio, Federico de Montefeltro's half-brother who was murdered in his nightshirt. More recently, the figure has been identified as a wingless angel, like those in Piero's later Nativity.