15. These are the wars waged by this mighty king during the forty-seven years of his reign. Through his conquests the kingdom of the Franks as he had received it from his father Pippin was almost doubled in area. When he came to the throne it included only a part of Gaul and of Germany; in Gaul, that part bounded by the ocean [Atlantic], the Rhine, the Loire, and the Balearic Sea [Mediterranean]; in Germany, that part bounded by the Rhine, the Danube, the land of the Saxons, and the Saale, ... with the overlordship of Bavaria and Alamannia. Karl added by his wars Aquitaine and Gascony; the Pyrenees and the land south to the Ebro; ... all of Italy as far south as lower Calabria; ... Saxony, which forms a considerable part of Germany; ... Pannonia and Dacia; Istria, Liburnia, and Dalmatia, except the maritime cities which were allied with the emperor of Constantinople; and, finally, all the barbarous tribes inhabiting Germany, between the Rhine, the Danube, the Vistula, and the ocean [Baltic], ... of whom the most important are the Welatabi, the Sorabi, the Abodriti, and the Bohemians. 16. The glory of his reign was also greatly enhanced by his alliances and friendships with foreign kings and peoples. Thus Aldefonso, king of Gallicia and Asturia,{48} was his ally, and spoke of himself by letters and ambassadors as the man of Karl. The kings of the Scots also were wont to address him as master, calling themselves his subjects and servants, of which expressions there are evidences in letters still existing which they have written to him. He was also in close relations with Aaron [Haroun-al-Raschid],{49} king of the Persians, who ruled almost all of the east outside of India, and who always expressed the greatest friendship and admiration for Karl. On one occasion, when Karl sent an embassy with gifts for the holy sepulchre of our Lord and Saviour, he not only permitted them to fulfil their mission, but even made a present of that holy spot to Karl, to rule as his own. And when the embassy of Karl returned, it was accompanied by ambassadors from Aaron, bearing presents of fine robes, spices, and other eastern treasures. A few years before he sent to Karl at his request an elephant which was the only one he at that time possessed. The emperors of Constantinople, Nicephorus, Michael, and Leo, were his friends and allies and sent many embassies to him. Even when they suspected him of desiring to seize their empire, because he took the title of emperor, they nevertheless entered into alliance with him, to avoid a rupture.