Plato, the story goes, sent Euphraeus to Perdiccas, Euphraeus counselled that he grant a principality to his brother Philip, and Philip's military occupation of this land enabled him to seize power following Perdiccas' death.
Plato supposedly sent Euphraeus to advise Perdiccas to confer dominion upon his brother Philip, which enabled Philip to gain control after Perdiccas' passing, facilitated by Philip's military occupation of the land.