That depiction of one of these historical figures was borrowed by Piero della Francesca for the seated Pilate in his Flagellation of Christ.
A cylindrical ivory box shows one of these people next to the inscription "ANDR" as he is presented with a fortress and also approached by a peacock. An eight-pointed crown adorned with feathers curling upward is featured in a portrait of the penultimate of these figures by Benozzo Gozzoli. That man was shown wearing a domed hat with pointed brim in a Pisanello work thought to be the first Renaissance portrait medallion. That depiction of one of these historical figures was borrowed by Piero della Francesca for the seated Pilate in his Flagellation of Christ. Many of them were buried in the five-domed Church of the (*) Holy Apostles, while their most famous member was shown with a halo and a robe of Tyrian purple with soldiers on his right and clergy on his left led by Bishop Maximian. That depiction forms a mosaic panel located in the Basilica of San Vitale in Ravenna. For 10 points, name these medieval rulers that included John VIII Paleologus and Justinian the Great.
A cylindrical ivory box shows one of these people next to the inscription "ANDR" as he is presented with a fortress and also approached by a peacock.
Byzantine emperors [accept alternate phrasings; prompt on partial answers]