name is listed on the obverse of the coin, with Constantine VI's name only listed on the reverse, the less important side. Also, in all orders, both oral and written, Irene's name took precedence over her son's name, and she signed her orders in the name of the emperor in her own right and her name took precedence in the oath of allegiance. Apart from that, she did not allow Constantine any voice in public affairs. At the same time, Irene appears to have been well aware that her position as regent was insecure. The last female regent of the Byzantine Empire had been Empress Martina, who had only managed to survive as regent for less than a year before her tongue was cut out and she was exiled to the island of Rhodes. Most people were probably expecting that Irene's reign would come to a similarly swift and bloody end. As early as 781, Irene began to seek a closer relationship with the Carolingian dynasty and the Papacy in Rome. She negotiated a marriage between her son Constantine and Rotrude, a daughter of Charlemagne by his third wife Hildegard. During this time Charlemagne was at war with the Saxons, and would later become the new king of the Franks. Irene went as far as to send an official to instruct the Frankish princess in Greek; however, Irene herself broke off the engagement in 787, against her son's wishes. Irene next had to subdue a rebellion led by Elpidius, the strategos of Sicily. Irene sent a fleet, which succeeded in defeating the Sicilians. Elpidius fled to Africa, where he defected to the Abbasid Caliphate. After the success of Constantine V's general, Michael Lachanodrakon, who foiled an Abbasid attack on the eastern frontiers, a huge Abbasid army under Harun al-Rashid invaded Anatolia in summer 782. The strategos of the Bucellarian Theme, Tatzates, defected to the Abbasids, and Irene had to agree to pay an annual tribute of 70,000 or 90,000 dinars to the Abbasids. Ending iconoclasm Irene's most notable act was the restoration of the veneration of icons (images of Christ or the saints). Having chosen Tarasios, one of her partisans and her former secretary, as Patriarch of Constantinople in 784, she summoned two church councils. The first of these, held in 786 at Constantinople, was frustrated by the opposition of the iconoclast soldiers. The second, convened at Nicaea in 787,