Ptolemy IV - Basileus of Ptolemaïkḕ Basileía from 222 BC to 204 BC
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
King Ptolemy IV "the Father-friend" of the Ptolemaic Kingdom

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
Ref: Svoronos 1127; SNG Cop 202; Noeske ...
(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.
Ref: Svoronos 1125; SNG Copenhagen 199.
(3) Ptolemy IV 222-205/4 BC
Obverse: Head of Zevs Ammon
Reverse: Eagle on thunderbolt
Ref: Svoronos 1128; Weiser 52