 Henry sent another army to assist Leo in the Mezzogiorno against the Normans he himself had confirmed in their conquests as his vassal.Leo, without assistance from Guaimar (distanced from Henry since 1047), was defeated at the Battle of Civitate on 18 June 1053 by Humphrey, Count of Apulia.Robert Guiscard, his younger brother; and Prince Richard I of Capua.