Another son, Reccared (586-601), succeeded Leovgild, and to him is due the conversion of the Visigoths to Catholic Christianity. The mass of the people and the Hispano-Roman aristocracy were Catholic, and were a danger to the state, not only because of their numbers, but also because of their wealth and superior culture. Reccared therefore announced his conversion (in 587 or 589), and was followed in his change of faith by not a few of the Visigoths. This did not end internal difficulties of a religious nature, for the Arian sect, though less powerful than the Catholic, continued to be a factor to reckon with during the remainder of Visigothic rule. Reccared also did much of a juridical character to do away with the differences which separated the Visigoths and Hispano-Romans, in this respect following the initiative of his father. After the death of Reccared, followed by three brief reigns of which no notice need be taken, there came two kings who successfully completed the Visigothic conquest of the peninsula. Sisebut conquered the Byzantine province of the southeast, and Swinthila that of the southwest. Thus in 623 the Visigothic kings became sole rulers in the peninsula,--when already their career was nearing an end. [Sidenote: Last century of Visigothic rule.] The last century of the Visigothic era was one of great internal turbulence, arising mainly from two problems: the difficulties in the way of bringing about a fusion of the races; and the conflict between the king and the nobility, centring about the question of the succession to the throne. The first of these was complicated by a third element, the Jews, who had come to Spain in great numbers, and had enjoyed high consideration down to the time of Reccared, but had been badly treated thereafter. Neither in the matter of race fusion nor in that of hereditary succession were the kings successful, despite the support of the clergy. Two kings, however, took important steps with regard to the former question. Chindaswinth established a uniform code for both Visigoths and Hispano-Romans, finding a mean between the laws of both. This was revised and improved by his son and successor, Recceswinth, and it was this code, the _Lex Visigothorum_ (Law of the Visigoths), which was to exercise such an important influence in succeeding centuries under its more usual title of the _Fuero Juzgo_.[9] Nevertheless, it was this same Recceswinth who conceded to the nobility the right of electing the king. Internal disorder did not end, for the nobles continued to war with one another and with the king. The next king, Wamba (672-680), lent a dying splendor to the Visigothic rule by the brilliance of his military victories in the course of various civil wars. Still, the only real importance of his reign was that it foreshadowed the peril which was to overwhelm Spain a generation later. The Moslem Arabs had already extended their domain over northern Africa,