In the prosecution of the civil war, the prince of Ionia twice returned to Europe; joined his arms with those of the emperor; besieged Thessalonica, and threatened Constantinople. Calumny might affix some reproach on his imperfect aid, his hasty departure, and a bribe of ten thousand crowns, which he accepted from the Byzantine court; but his friend was satisfied; and the conduct of Amir is excused by the more sacred duty of defending against the Latins his hereditary dominions. The maritime power of the Turks had united the pope, the king of Cyprus, the republic of Venice, and the order of St. John, in a laudable crusade; their galleys invaded the coast of Ionia; and Amir was slain with an arrow, in the attempt to wrest from the Rhodian knights the citadel of Smyrna. [48] Before his death, he generously recommended another ally of his own nation; not more sincere or zealous than himself, but more able to afford a prompt and powerful succor, by his situation along the Propontis and in the front of Constantinople. By the prospect of a more advantageous treaty, the Turkish prince of Bithynia was detached from his engagements with Anne of Savoy; and the pride of Orchan dictated the most solemn protestations, that if he could obtain the daughter of Cantacuzene, he would invariably fulfil the duties of a subject and a son. Parental tenderness was silenced by the voice of ambition: the Greek clergy connived at the marriage of a Christian princess with a sectary of Mahomet; and the father of Theodora describes, with shameful satisfaction, the dishonor of the purple. [49] A body of Turkish cavalry attended the ambassadors, who disembarked from thirty vessels, before his camp of Selybria. A stately pavilion was erected, in which the empress Irene passed the night with her daughters. In the morning, Theodora ascended a throne, which was surrounded with curtains of silk and gold: the troops were under arms; but the emperor alone was on horseback. At a signal the curtains were suddenly withdrawn to disclose the bride, or the victim, encircled by kneeling eunuchs and hymeneal torches: the sound of flutes and trumpets proclaimed the joyful event; and her pretended happiness was the theme of the nuptial song, which was chanted by such poets as the age could produce. Without the rites of the church, Theodora was delivered to her barbarous lord: but it had been stipulated, that she should preserve her religion in the harem of Bursa; and her father celebrates her charity and devotion in this ambiguous situation. After his peaceful establishment on the throne of Constantinople, the Greek emperor visited his Turkish ally, who with four sons, by various wives, expected him at Scutari, on the Asiatic shore. The two princes partook, with seeming cordiality, of the pleasures of the banquet and the chase; and Theodora was permitted to repass the Bosphorus, and to enjoy some days in the society of her mother.