Perdiccas' authority as regent and his control over the royal family were immediately challenged. Perdiccas appointed Leonnatus, one of Alexander's bodyguards or somatophylakes, as satrap of Hellespontine Phrygia on the western coast of Asia Minor. However, instead of assuming that position, Leonnatus sailed to Macedonia when Alexander's sister, Cleopatra, widow of King Alexander I of Epirus, offered her hand to him. Upon learning of this, in spring 322 BC Perdiccas marched the imperial army towards Asia Minor to reassert his dominance as regent. Perdiccas ordered Leonnatus to appear before him to stand trial for disobedience, but Leonnatus died during the Lamian War before the order reached him.