Philopappos' monument is a two-story structure, supported by a base. On the lower level there is a frieze representing Philopappos as a
consul, riding on a chariot and led by
lictors. The upper level shows statues of three men: of
Antiochus IV on the left, of Philopappos in the centre and of
Seleucus I Nicator, now lost, on the right. In the niche below Philopappos is an inscription in ("Philopappos, son of Epiphanes of the
deme of the Besa"). This was the name Philopappos carried as an Athenian citizen. In the niche left of Philopappos, a Latin inscription records Philopappos' titles, honors and his career as a
Roman magistrate: "Caius Iulius Antiochus Philopappos, son of Caius, of the Fabian tribe, consul and Arval brother, admitted to the praetorian rank by the emperor Caesar Nerva
Trajan Optimus
Augustus Germanicus Dacicus". On the right niche of Philopappos once stood a Greek inscription (now only the base is preserved): ("King Antiochus Philopappos, son of King Antiochus Epiphanes"). Below the statue of Antiochus IV, Philopappos' paternal grandfather, is an inscription that states "King Antiochus son of King Antiochus". This inscription honors Antiochus IV and his late father, the last independent ruler of the
Kingdom of Commagene, King
Antiochus III Epiphanes. When Antiochus III died in 17, Commagene was annexed by the
Roman Emperor Tiberius and became a part of the
Roman Empire. Below the statue of Seleucus I, the founder of the
Seleucid Empire from whom the Commagene kings claimed descent, stood another inscription, now lost. The traveller
Cyriacus of Ancona wrote in his memoir that underneath the inscription stated "King Seleucus Nicator, son of Antiochus". The monument measures , and contains Philopappos' burial chamber. The structure is built of white
Pentelic marble on a
socle high, made of porous marble and veneered with slabs of
Hymettian marble. The north side of Philopappos' monument bears lavish architectural decorations. == Excavations and history ==