Tuhia he tomokanga mo tenei waahanga - I mutu te raina o nga Beauchamp Earls i te 1449 i te matenga o Anne de Beauchamp, 15th Countess of Warwick. Ko Richard Neville, te "Kingmaker", i riro hei Earl o Warwick e whai ake nei na te kainga tupu o tana wahine. I te raumati o te tau 1469, ka whakakeke a Neville ki a Kingi Edward IV o Ingarangi, a ka herea ia ki Warwick Castle. I ngana a Neville ki te whakahaere i runga i te ingoa o te Kingi; heoi, ko nga whakahe tonu a nga kaitautoko o te Kingi i akiaki i te Earl ki te tuku i te Kingi. I mate a Neville i muri mai i te Pakanga o Barnet
, e whawhai ana ki te Kingi i te tau 1471 i te wā o ngā Pakanga o ngā Rōpu. I haere mai a Warwick Castle mai i Neville ki tana hunaonga, a George Plantagenet, 1st Duke o Clarence (tuakana o Kingi Edward IV). I whakamatea a George Plantagenet i te tau 1478, a, ko ana whenua i riro i tana tama, a Edward Plantagenet, te 17th Earl o Warwick; heoi, e rua noa iho nga tau o Edward Plantagenet i te matenga o tona papa, no reira ka riro ana whenua ki te mana o te Karauna. I whakanohoia ia ki raro i te kaitiaki, na reira kaore i taea te whiwhi i te torona, na King Henry VII o Ingarangi, i puritia e te Kingi mo nga tau tekau ma wha i roto i te Pourewa o Raanana tae noa ki tana whiunga mo te tinihanga nui i te 1499, i kiia mo te whakapae ki te mawhiti me te 'pretender' Perkin Warbeck. Ko Edward te Earl whakamutunga o Warwick o te hanganga tuatahi o te taitara.