With the help of Ragnachar, he defeated Syagrius, the last Roman official, 
With the help of Ragnachar, he defeated Syagrius, the last Roman official, at the Battle of Soissons. He converted to Catholicism as opposed to Arian Christianity at the urging of Clotilde, his (*) Burgundian Catholic wife. Through marriage and battle, he quickly consolidated his rule, eventually controlling most of Gaul. FTP, name this successor of Childeric I who became the first ruler in the Merovingian Dynasty.
With the help of Ragnachar, he defeated Syagrius, the last Roman official, at the Battle of Soissons.
{Clovis} I