Nielsen Hayden genealogy
Descendants of Hawise de Clare
- Aft 1234Father: Richard de Clare (Abt 1153 of Clare, Suffolk, England - Between 30 Oct 1217 and 28 Nov 1217)
Mother: Amice of Gloucester ( - 1 Jan 1225)
Hawise de Clare ( - Aft 1234)
Geoffrey de Say (Abt 1180 of Edmonton, Middlesex, England - 19 Aug 1230 Poitou, Aquitaine, France)(m. Bef 1215)
   └─ William de Say (of Edmonton, Middlesex, England - Bef 12 Feb 1272)
    Sibyl
       ├─ Hawise de Say ( - Aft 1317)
       │ John Marshal (Abt 1257 of Hingham, Norfolk, England - Bef 4 Dec 1282)(m. Aft 1267)
       │    └─ William Marshal (Abt 24 Sep 1277 Denham, Suffolk, England -
       │     24 Jun 1314 Bannockburn, Stirlingshire, Scotland) =>
       │     24 Jun 1314 Bannockburn, Stirlingshire, Scotland) =>
       │     + Christian de Burgh ( - Bef 6 Dec 1315 Holywell Priory, Shorewell, Middlesex, England)
       ├─ Agnes de Say
       │ Alexander de Cheyne (of Titeburst in Aldenham, Hertfordshire, England - Bef 22 May 1296)(m. Abt 1268)
       │    └─ William de Cheyne (Abt 1274 of Streat, Sussex, England -
       │     Aft 16 Mar 1322 York, Yorkshire, England) =>
       │     Aft 16 Mar 1322 York, Yorkshire, England) =>
       │     + Margaret de Shurland
       └─ William de Say (20 Nov 1253 of Edmonton, Middlesex, England - Bef 16 Sep 1295)
        Elizabeth ( - Aft 1307)
           └─ Geoffrey de Say (Between 1279 and 1281 of West Greenwich, Kent, England - Bef 3 Mar 1322) =>
            + Idoine de Leybourne ( - Aft 14 Nov 1337)(m. 28 Dec 1295)