 According to the 10th-century chronicler Theophanes Continuatus—whose work was later reused almost without change by the 11th-century historian John Skylitzes—in the early years of the reign of the Emperor Basil I the Macedonian (r. 867–886) the Arab emir of Crete, Shu'ayb ("Saet" in Greek), son of the founder of the emirate, Abu Hafs, sent a Greek renegade called Photios, "a warlike and energetic fellow", on major raiding expeditions against the Byzantine Empire.The first raid was defeated by the "droungarios" of the Fleet, Niketas Ooryphas, at the Battle of Kardia (c. 872/3).Photios with the remnants of his fleet survived to return to Crete, and some time shortly after—probably c. 873, although some scholars place it as late as 879—launched another expedition, raiding the shores of the Peloponnese.