The alliance between Burgundians and Visigoths seems to have been strong, as Gundioc and his brother Chilperic I accompanied Theodoric II to Spain to fight the Sueves in 455.
Izgleda da je je savez između Burgunda i Vizigota bio vrlo jak, kad je Gundiok i njegov brat Kilperik I. pratio Teodorika II. u Španjolsku da se bore protiv Sveva 455.