Nielsen Hayden genealogy
Descendants of Mary of Lancaster
Abt 1320 - 1362 (~ 42 years)Father: Henry of Lancaster (Abt 1280 - 22 Sep 1345 bur.The Newarke, Leicester Castle, Leicester, Leicestershire, England)
Mother: Maud de Chaworth (2 Feb 1282 - Bef 3 Dec 1322 bur.Mottisfont Priory, Hampshire, England)
Mary of Lancaster (Abt 1320 - 1 Sep 1362 bur.Alnwick Abbey, Northumberland, England)
Henry de Percy (Between 1322 and 1325 of Alnwick, Northumberland, England -
Abt 18 May 1368 Warkworth, Northumberland, England)(m. Bef 5 Sep 1334)
Abt 18 May 1368 Warkworth, Northumberland, England)(m. Bef 5 Sep 1334)
   └─ Henry Percy (10 Nov 1341 of Warkworth, Northumberland, England -
    19 Feb 1408 Bramham Moor, near Tadcaster, Yorkshire, England)
    19 Feb 1408 Bramham Moor, near Tadcaster, Yorkshire, England)
    Margaret de Neville ( - 11 May 1372 bur.North Allerton, Yorkshire, England)
    (m. 12 Jul 1358 Brancepeth, Durham, England)
    (m. 12 Jul 1358 Brancepeth, Durham, England)
       └─ Henry "Hotspur" Percy (20 May 1364 - 21 Jul 1403 Shrewsbury, Shropshire, England)
        Elizabeth Mortimer (12 Feb 1371 Usk, Monmouthshire, Wales - 20 Apr 1417)(m. Bef 10 Dec 1379)
           ├─ Elizabeth Percy ( - 26 Oct 1436 bur.Staindrop, Durham, England) =>
           │ + John Clifford (Abt 1389 - 13 Mar 1422 Mieux, France)(m. Between Aug 1403 and 5 Nov 1412)
           └─ Henry Percy (3 Feb 1393 - 22 May 1455 St. Albans Abbey, Hertfordshire, England) =>
            + Eleanor Neville ( - Abt 1473)