Kammala jumla mai zuwa: A watan Disamba na 1457, an nada Berkeley a matsayin daya daga cikin Kwamishinonin Leicestershire na Array. Kwamishinoni sun tara masu baka 226 don taimakawa wajen kawar da Richard, Duke na York
Yorkist tawaye da kuma sake a 1459. Berkeley ya zama jarumi a watan Nuwamba 1460<unk> watakila ya shiga cikin yakin Northampton, Lokacin da yakin Towton ya ƙare mulkin Henry VI, Berkeley ya yarda da Edward IV a matsayin Sarki.