Lewis & Short

Pŏlycrătes, is, m., = Πολυκράτης, a prince of Samos, and friend of Amasis, celebrated for his good fortune, but at last crucified by the Persian governor Orœtes, Cic. Fin. 5, 30, 92; Val. Max. 6, 9, 5 ext.
Gr. acc. in -en, Quint. 2, 17, 4.