Nielsen Hayden genealogy
Ancestors of Eupheme de Ross
Abt 1345 - Aft 1394 (~ 49 years)
┌── Farquhar Mactaggart 
( - Abt 1251 bur.Fearn Abbey, Ross-shire, Scotland)
( - Abt 1251 bur.Fearn Abbey, Ross-shire, Scotland) ┌── William of Ross ( - Abt 18 May 1274)
( - Abt 18 May 1274) ┌── William Ross ( - 28 Jan 1323 Delny, Ross-shire, Scotland)
( - 28 Jan 1323 Delny, Ross-shire, Scotland) │ │ ┌── William Comyn ( - 1233) =>
( - 1233) => │ └── Jean Comyn
│
┌── Hugh Ross ( - 19 Jul 1333 Halidon Hill, Northumberland, England)(m. 1308)
( - 19 Jul 1333 Halidon Hill, Northumberland, England)(m. 1308) │ │
│ │ ┌── Hugh de Barclay
│ └── Euphemia de Barclay
│
┌── William de Ross ( - 9 Feb 1372 Delny, Ross-shire, Scotland)(m. 25 May 1342)
( - 9 Feb 1372 Delny, Ross-shire, Scotland)(m. 25 May 1342) │ │
│ │ ┌── Robert de Brus (of Annandale, Dumfriesshire, Scotland -
│ │ │ 1221 bur.Guisborough Priory, Yorkshire, England) =>
(of Annandale, Dumfriesshire, Scotland -│ │ │ 1221 bur.Guisborough Priory, Yorkshire, England) =>
│ │ ┌── Robert de Brus (Abt 1220 of Annandale, Dumfriesshire, Scotland -
│ │ │ 31 Mar 1295 Lochmaben Castle, Dumfriesshire, Scotland)(m. May 1240)
(Abt 1220 of Annandale, Dumfriesshire, Scotland -│ │ │ 31 Mar 1295 Lochmaben Castle, Dumfriesshire, Scotland)(m. May 1240)
│ │ │ └── Isabel of Huntingdon ( - Bef 20 Mar 1252 bur.Sawtrey Abbey, Huntingdonshire,
│ │ │ England) =>
( - Bef 20 Mar 1252 bur.Sawtrey Abbey, Huntingdonshire, │ │ │ England) =>
│ │ │
│ │ ┌── Robert de Brus (Jul 1243 - 4 Apr 1304 England)(m. Abt 1273)
(Jul 1243 - 4 Apr 1304 England)(m. Abt 1273) │ │ │ │
│ │ │ │ ┌── Gilbert de Clare (Abt 1180 - 25 Oct 1230 Penrose, Brittany, France)
(Abt 1180 - 25 Oct 1230 Penrose, Brittany, France) │ │ │ │ │ (m. 9 Oct 1217) =>
│ │ │ └── Isabel de Clare (2 Nov 1226 - Aft 10 Jul 1264)(m. May 1240)
(2 Nov 1226 - Aft 10 Jul 1264)(m. May 1240) │ │ │ └── Isabel Marshal (9 Oct 1200 Pembroke, Pembrokeshire, Wales -
│ │ │ 17 Jan 1240 Berkhamsted, Hertfordshire, England)(m. 9 Oct 1217) =>
(9 Oct 1200 Pembroke, Pembrokeshire, Wales -│ │ │ 17 Jan 1240 Berkhamsted, Hertfordshire, England)(m. 9 Oct 1217) =>
│ │ │
│ └── Maud Bruce ( - Aft Sep 1323)(m. 1308)
( - Aft Sep 1323)(m. 1308) │ │
│ │ ┌── Neil ( - 1256)
( - 1256) │ │ │
│ └── Marjory of Carrick (Abt 1252 - Bef Nov 1292)(m. Abt 1273)
(Abt 1252 - Bef Nov 1292)(m. Abt 1273) │ └── Isabel
│
Eupheme de Ross (Abt 1345 - Aft 4 May 1394)
│
│ ┌── Reginald of the Isles ( - 1207) =>
( - 1207) => │ ┌── Donald of the Isles ( - Abt 1250 bur.Iona, Argyllshire, Scotland)
( - Abt 1250 bur.Iona, Argyllshire, Scotland) │ ┌── Angus Mor of the Isles ( - Abt 1296 bur.Iona, Argyllshire, Scotland)
( - Abt 1296 bur.Iona, Argyllshire, Scotland) │ │ └── (Unknown) Stewart
│ │
│ ┌── Angus Og of the Isles ( - 1330 Finlaggen Castle, Isla, Scotland)
( - 1330 Finlaggen Castle, Isla, Scotland) │ │ │
│ │ │ ┌── Gillespic Campbell ( - Abt 1280)
( - Abt 1280) │ │ │ ┌── Colin Campbell (of Lochow, Argyllshire, Scotland -
│ │ │ │ Abt 1296 String of Lorne, Argyllshre, Scotland)
(of Lochow, Argyllshire, Scotland -│ │ │ │ Abt 1296 String of Lorne, Argyllshre, Scotland)
│ │ └── (Unknown) Campbell
│ │
└── Mary of the Isles (m. 25 May 1342)
(m. 25 May 1342) │
│ ┌── Guy O'Cathan (of Ulster, Ireland - ??)
(of Ulster, Ireland - ??) └── Agnes O'Cathan