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I remember we had a thread on this around a year or so ago. Pyrrhus was married to Ptolemy's step-daughter after a short exile in Egypt. Ptolemy also considered him like a son.

As we all know, Pyrrhus was the ultimate adventurer and also has had ASB levels of bad luck OTL. So how can we get him on the throne of Egypt, whether by force or through cunning diplomacy/marriage or both? I remember Velasco through it out there on the last thread that a way to get it might be to get him to marry an actual daughter of Ptolemy instead of a step-daughter though would Ptolemy actually go that far? He can also ally with Ptolemy Keraunos (thunderbolt), as he did OTL when he left for his Italian expedition, but of course Ptolemy died fighting off the Celtic invasion, but that doesn't have to happen here...

Assuming he does get the throne by some form or another and holds onto it, what effect does this have longterm/short-term? He planned to have Sicily and Epirus each inherited by one of his sons, so I imagine something similar here where one son gets Epirus and the other his Egyptian holdings could be done? The survival of Ptolemy Keraunos requires Antigonos Gonatas to be defeated permanently, which will be easily done if Ptolemy fights off the Celts, and the effects of that-no Antigonid Macedonian kingdom-could be huge as well.

There's also the problem with Seleucid-Pyrrhic (as opposed to Ptolemaic) relations-maybe Pyrrhus can have his bid sponsored by Antiochus I if Ptolemy Philadelphus really becomes a thorn in his side or conveniently dies suddenly? The possibilities are really intriguing.
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