Editing Ptolemy V Epiphanes (section)

===Peace with Antiochus III===
[[File:Cleopatra I.jpg|thumb|Modern depiction of Queen [[Cleopatra I]] produced from a contemporary [[relief]]]]
After the Romans decisively defeated Philip V at the [[Battle of Cynoscephalae]] in 197 BC, they turned their attention to Antiochus III, whose troops had crossed the [[Hellespont]] and entered Thrace. In late 196 or early 195 BC [[Lucius Cornelius Lentulus (consul 199 BC)|Lucius Cornelius Lentulus]] met with the Syrian king and, among other things, demanded that Antiochus III return everything he had conquered from Ptolemy V. However, Antiochus announced that he had already begun peace negotiations with Egypt and the Romans departed without achieving anything.<ref>Polybius 18.49-52; [[Livy]] ''Ab Urbe Condita'' 33.39-41; [[Appian]], ''Syriaca'' 3.</ref> Antiochus then concluded peace with Ptolemy, engaging him to his own daughter [[Cleopatra I]]. In winter of 194/193 BC, the sixteen-year old Ptolemy V married Cleopatra I, who was somewhere between 14 and 23 years old. Symbolically, Antiochus held the wedding that sealed his conquest of Coele-Syria at Raphia, the site of his great defeat at the hands of Ptolemy IV.<ref>Livy ''Ab Urbe Condita'' 33.13; [[Cassius Dio]] 19.18</ref><ref>{{cite web |last1=Bennett |first1=Chris |title=Cleopatra I|url=http://instonebrewer.com/TyndaleSites/Egypt/ptolemies/cleopatra_i_fr.htm|website=Egyptian Royal Genealogy |access-date=6 November 2019}}</ref>