Ptolemaois IV - son of Ptolemy III and Berenice II - was the fourth Pharaoh of Ptolemaic Egypt.
Ptolemy IV's reign was inaugurated by the murder of his mother,[2] and he was always under the dominion of favourites, male and female, who indulged his vices and conducted the government as they pleased.
He was devoted to orgiastic forms of religion and literary dilettantism. He built a temple to Homer and composed a tragedy, to which his favourite Agathocles added a commentary.
Ptolemy is said to have built a giant ship known as the tessarakonteres ("forty"), a huge galley and possibly the largest human-powered vessel ever built. The current theory is that Ptolemy's ship was an oversized catamaran galley, measuring 128 m (420 ft.).
Ptolemy IV's reign was inaugurated by the murder of his mother,[2] and he was always under the dominion of favourites, male and female, who indulged his vices and conducted the government as they pleased.
He was devoted to orgiastic forms of religion and literary dilettantism. He built a temple to Homer and composed a tragedy, to which his favourite Agathocles added a commentary.
Ptolemy is said to have built a giant ship known as the tessarakonteres ("forty"), a huge galley and possibly the largest human-powered vessel ever built. The current theory is that Ptolemy's ship was an oversized catamaran galley, measuring 128 m (420 ft.).

Epithet: Philopator ("the Father-friend")
(1)
Ptolemy IV
221-204 BC
Obverse:
Diademed head of Zeus-Ammon right
Reverse:
Eagle standing left on thunderbolt; cornucopia to the left; ΠTOΛEMAIOY_ΒAΣIΛEΩΣ, ΔI
(2)
Ptolemy IV
221-205 BC
Obverse:
Diademed head of Zeus-Ammon right.
Reverse:
ΠΤΩΛΕΜΑΙΟΥ ΒΑΣΙΛΕΩΣ Eagle standing left on thunderbolt; cornucopiae left, ΔΙ between legs.
(3)
Ptolemy IV
222-205/4 BC
Obverse:
Head of Zevs Ammon
Reverse:
Eagle on thunderbolt