1 8 1 2 – 1 8 3 5 ) ▁William ▁Thomas ▁Sp encer ▁W ent worth - F itz will iam , ▁ 6 th ▁Earl ▁Fitz will iam ▁( 1 8 1 5 – 1 9 0 2 ) ▁William ▁W ent worth - F itz Will iam , ▁Vis count ▁Mil ton ▁( 1 8 3 9 – 1 8 7 7 ) ▁William ▁Charles ▁de ▁Me ur on ▁W ent worth - F itz will iam , ▁ 7 th ▁Earl ▁Fitz will iam ▁( 1 8 7 2 – 1 9 4 3 ) ▁( Will iam ▁Henry ▁Lawrence ) ▁Peter ▁W ent worth - F itz will iam , ▁ 8 th ▁Earl ▁Fitz will iam ▁( 1 9 1 0 – 1 9 4 8 ) ▁Eric ▁Sp encer ▁W ent worth - F itz will iam , ▁ 9 th ▁Earl ▁Fitz will iam ▁( 1 8 8 3 – 1 9 5 2 ) ▁William ▁Thomas ▁George ▁W ent worth - F itz will iam , ▁ 1 0 th ▁Earl ▁Fitz will iam ▁( 1 9 0 4 – 1 9 7 9 ) ▁ ▁See ▁also ▁Mar qu ess ▁of ▁Rock ingham ▁Earl ▁Fitz will iam ' s ▁private ▁railway ▁Vis count ▁Fitz Will iam , ▁peer age ▁of ▁Ireland , ▁an ▁un related ▁family . ▁ ▁References ▁ ▁Category : Ext inct ▁ear ld oms ▁in ▁the ▁Pe er age ▁of ▁Ireland ▁Category : Pe ople ▁from ▁Peter borough ▁Category :