Although the Vandals now gained control of the lucrative African grain trade with Italy, they also launched raids on the coasts of the Mediterranean that ranged as far as the Aegean Sea and culminated in their sack of Rome itself in 455, which allegedly lasted for two weeks. Taking advantage of the chaos that followed Valentinian's death in 455, Geiseric then regained control—albeit rather tenuous—of the Mauretanian provinces, and with his fleet took over Sardinia, Corsica and the Balearic Islands. Sicily barely escaped the same fate through the presence there of Ricimer.