Stateira, the very young queen of Persia was practically in despair: the death of her husband Alexander had left her alone to try to hold up her husband's kingdom just a couple of months after the birth of their only child, little Achilles. True, she and her younger sister Drypetis, widowed almost a year earlier by Hephaestion, Alexander's best friend and second in command, to whom she had given a posthumous daughter, named Cleopatra in honor of Alexander's sister, could count on the support of her elderly grandmother Sisygambis, who though devastated by the death of Alexander, whom she had adopted as her son well before his marriage to Stateira, was well determined to protect the legacy of little Achilles.
And Alexander's undoubtedly ambitious generals could hardly exclude them from power or regency for the infant king, at least as far as Asia was concerned. Craterus, whom Alexander had appointed regent in Macedonia but had failed to seize control of the area before his death, had taken in marriage one of the daughters of Antipater, the man he was to replace, repudiating his Persian wife Amestris, cousin of Stateira and Drypetis, who had refused to leave the role of principal wife to the newcomer.
Two more of Alexander's generals, Demetrius and Perdiccas had married Antipater's remaining daughters, while the ambitious Leonnatus had taken as wife Cleopatra, Alexander's sister and widowed queen of Epirus. Of Alexander's remaining commanders, Seleucus, Eumenes, and Nearchus had retained their Persian marriages, and Ptolemy had added a marriage to Berenice, Antipater's niece, to his Persian wife. Stateira had been joined in Asia by Alexander's mother Olympias, whom she had not had a chance to meet while her husband was still alive, and she had found in her a valuable ally, since Olympias had added her knowledge of Macedonia and Epirus to that of Sisygambis and Ada of Caria about Asia, giving Stateira and Drypetis a full view of the situation.
Of the other wives left behind by Alexander, Parysatis was a cousin of Stateira, who would have nothing to fear from her, while she was grateful for the fact that Alexander's other wife, the very ambitious Roxana of Bactria was childless having miscarried both times she had been pregnant.
Amestris however had remarried another Macedonian general, Lysimachus, ensuring a new ally for her cousins, who could already count on Leonnatus, Seleucus, Eumenes, Nearchus, and at least the respect of Craterus, Ptolemy and Perdiccas