Dr. Beth Harris and Dr. Steven Zucker provide a description, historical perspective, and analysis of the Portraits of the Four Tetrarchs.

Portraits of the Four Tetrarchs, from Constantinople, c. 305, porphyry, 4′ 3″ high (St. Marks, Venice)

Note: the missing left foot of the right most figure was found at the Philadelphion near the Bodrum Mosque in present day Istanbul. The foot fragment is displayed at the Istanbul Archaeology Museum.