Succeeding his brother Gunderic at a time when the Vandals were settled in Baetica, Roman Hispania (modern Andalusia, Spain), Gaiseric successfully defended himself against a Suebian attack and transported all his people, around 80,000, to Northern Africa in 428.
Menggantikan saudaranya Gunderik pada saat para Vandal menetap di Baetica, Hispania Romawi (Andalusia modern, Spanyol), Genserik berhasil mempertahankan dirinya dari serangan Suebi dan membawa seluruh bangsanya, sekitar 80.000, ke Afrika Utara pada tahun 428.