John FitzAlan III (14 September 1246 – 18 March 1272), was an English nobleman.
He was also Lord and Baron of Clun and Oswestry in the Welsh Marches.
He was the son of John FitzAlan II, Earl of Arundel (1223–1267), and Maud de Verdun, daughter of Theobald le Botiller (or Boteler) and Rohese (or Rohesia) de Verdun.
[1] His paternal grandparents were John FitzAlan, Lord of Oswestry and Isabel d'Aubigny.
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