Nielsen Hayden genealogy
Ancestors of John Fitz Alan
1246 - 1272 (25 years)
┌── William Fitz Alan 
(Abt 1154 of Oswestry, Shropshire, England - 1210)(m. Abt 1175) =>
(Abt 1154 of Oswestry, Shropshire, England - 1210)(m. Abt 1175) => ┌── John Fitz Alan (of Clun, Shropshire, England - Bef 15 Mar 1240)(m. Bef 1223)
(of Clun, Shropshire, England - Bef 15 Mar 1240)(m. Bef 1223) │ └── (Unknown) de Lacy (m. Abt 1175) =>
(m. Abt 1175) => │
┌── John Fitz Alan (Abt 1223 of Clun, Shropshire, England - Bef 10 Nov 1267)(m. Bef 1240)
(Abt 1223 of Clun, Shropshire, England - Bef 10 Nov 1267)(m. Bef 1240) │ │
│ │ ┌── William d'Aubigny ( - 1 Feb 1221 Cainell, near Rome) =>
( - 1 Feb 1221 Cainell, near Rome) => │ └── Isabel d'Aubigny ( - Bef 1240)(m. Bef 1223)
( - Bef 1240)(m. Bef 1223) │ └── Mabel of Chester ( - Bef 1232) =>
( - Bef 1232) => │
John Fitz Alan (14 Sep 1246 of Arundel, Sussex, England - 18 Mar 1272 bur.Haughmond Abbey, Shropshire, England)
│
│ ┌── Theobald Walter ( - Bef 14 Feb 1205 bur.Owney Abbey, Limerick, Ireland)(m. Bef 1201) =>
( - Bef 14 Feb 1205 bur.Owney Abbey, Limerick, Ireland)(m. Bef 1201) => │ ┌── Theobald le Boteler (1200 of Arklow, Wicklow, Ireland -
│ │ Abt 1230 bur.Abbey of Arklow, Wicklow, Ireland)(m. Aft 4 Sep 1225)
(1200 of Arklow, Wicklow, Ireland -│ │ Abt 1230 bur.Abbey of Arklow, Wicklow, Ireland)(m. Aft 4 Sep 1225)
│ │ └── Maud le Vavasour ( - Bef 1226)(m. Bef 1201) =>
( - Bef 1226)(m. Bef 1201) => │ │
└── Maud de Verdun ( - 27 Nov 1283)(m. Bef 1240)
( - 27 Nov 1283)(m. Bef 1240) │
│ ┌── Nicholas de Verdun (of Alton, Staffordshire, England - 1231) =>
(of Alton, Staffordshire, England - 1231) => └── Rohese de Verdun ( - Bef Feb 1247)(m. Aft 4 Sep 1225)
( - Bef Feb 1247)(m. Aft 4 Sep 1225) └── Clemencia