YourRoots by Genomelink
banner

Sign up to explore more

Create a free account to navigate family trees, view ancestors, and discover connections.

Niall Mor King of Ulster O'Neill 1360–1394 – Genealogical Records

Birth Date: 1360

Birth Location: Ballywater, County Down, Ulster, Ireland

Death Date: 1394

Death Location: Tyrone, Tyrone, Ireland

Father: Aedh Neill

Mother: Gormfhlaith Donell

Spouse(s): Beanmidhe MacMahon

Children(s): Sir 'ir, Henry O'Neill

In 1360, Niall Mor King of Ulster O'Neill entered the world in Ballywater, County Down, Ulster, Ireland, born to Aedh Baemhar King Of Ulster O Neill And Gormfhlaith Tir Conaill O Donell. Niall Mor King of Ulster O'Neill married Beanmidhe Of Oriel Macmahon, and had children including Henry Aimhreidh O Neill, Sir Niall Oge Neil The Younger Mcneill O Neill Mor Of Tir Eoghain Knighted By Richard Ii 17Th King Of Tir Eoghain Ir. Niall Mor King of Ulster O'Neill passed away in 1394 in Tyrone, Tyrone, Ireland.

Find more search results for Niall O'Neill
NO

Reliability Score

This score reflects the reliability of the source family tree. A high rating indicates a trustworthy source with strong data consistency.

Reliability Score:
B
Criteria:
  • A 3 criteria (Strong)
  • B 2 criteria (Medium)
  • C 1 criteria (Basic)
  • N/A 0 criteria (Insufficient)

This tree's reliability score:

  • Record available
  • Descendant's record available
  • Star tree owner

Biography

  • In 1360, Niall Mor King of Ulster O'Neill entered the world in Ballywater, County Down, Ulster, Ireland, born to Aedh Baemhar King Of Ulster O Neill And Gormfhlaith Tir Conaill O Donell.
  • Niall Mor King of Ulster O'Neill married Beanmidhe Of Oriel Macmahon, and had children including Henry Aimhreidh O Neill, Sir Niall Oge Neil The Younger Mcneill O Neill Mor Of Tir Eoghain Knighted By Richard Ii 17Th King Of Tir Eoghain Ir.
  • Niall Mor King of Ulster O'Neill passed away in 1394 in Tyrone, Tyrone, Ireland.

Immediate Family

Parents

Spouses(s)

Children(s)

Niall O'Neill's Ancestors

Self
Niall O'Neill
1360–1394
Birth Place: Ballywater, County Down, Ulster, Ireland
Parents
Aedh Baemhar King of Ulster O' Neill
1290–1364
Tyrone, Tyrone, Ireland
Gormfhlaith (Tir Conaill O') Donell
–1353
Tir, Uttaranchal, India
Grandparents
Domnall (Ulster O') Neill
1250–1325
Ireland
Great-Grandparents
Brian O'Neill
1215–1260
Jill MacDougal
1220–
2nd-Great-Grandparents
Niall O'Neill
1169–1215
Nuala O'Conner
1150–1226

Niall O'Neill's Descendants

1.
NO
Niall (Mor King of Ulster) O'Neill (1360–1394) m. Beanmidhe (of Oriel) MacMahon (–1386)
  1. 1. Sir (Niall Oge Neil the Younger McNeill^ O'Neill Mor of Tir Eoghain Knighted by Richard II 17th King of Tir Eoghain) 'ir 1367–1403 m. Una^ (O'Neill of Tir Eoghain Queen O'Neill of Tir Eogain) 'ir 1370–1417
    1. 1. King (Eoghan (Eogan) "Eugene" Owen "The Young" O'Neill, King of) Ulster 1389–1456 m. Catairona MacMAHON 1430–1465 m. Margaret (de la Terre) x 1380–1456
      1. 1. Conn ((Mor) King of Tir Eoghan (Tyrone)) O'Neill 1450–1493 m. Eleanor Fitzgerald 1460–1497 m. Gormfhlaith McMURROUGH 1440–
        1. 1. HRH (Cunonnacht Bacach Mac Cuinn, O’Neill Prince of Ireland, “The Lame”, Duke of Hibernicorum, and 1st Earl) Tyrone 1460–1537 m. HRH (Joan O'Reilly Princess of) Ireland 1500–1540
        2. 2. Conn ONeill 1484–1559
      2. 2. Joanna (O'Neill Princess of Ulster) x 1410–1465
    2. 2. Prince (Owen) O'Neill, 1397–1427
    3. 3. Princess (Una) O'Neill, 1402–
    4. 4. Brian (Og O' Neill of Tir Eoghain MacNéill Óg 18th King of Tir Eoghain) 'ir 1380–1403
  2. 2. Henry (Aimhreidh) O'Neill –1392

Niall O'Neill's Timeline

2 Records

1360
1360
Birth of Niall Mor King of Ulster O'Neill in Ballywater, County Down, Ulster, Ireland
Ballywater, County Down, Ulster, Ireland
1394
1394
Age 34
Death of Niall Mor King of Ulster O'Neill in Tyrone, Tyrone, Ireland
Tyrone, Tyrone, Ireland

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 1360
    Event Place: Ballywater, County Down, Ulster, Ireland

    Genealogy Event 2
    Event Type: Death
    Event Date: 1394
    Event Place: Tyrone, Tyrone, Ireland

About YourRoots

Family Tree Map

Explore your family tree geographically

Import your GEDCOM file to transform your family tree into an interactive global map. See your roots laid out visually and understand your true geographic heritage.

Powerful tools like "Trace Back To Me" instantly map your family's migration paths from a chosen ancestor all the way back to you.

LEARN MORE
AI Genealogy Research

Discover ancestors beyond "end-of-line" automatically

Import your family tree and let AI expand it for you. AI Ancestor Finder scans "end-of-line" ancestors to uncover their parents across hundreds of family lines at once. AI Deep Research analyzes selected ancestors and family clusters, suggesting relevant records and next steps.

Turn on Auto Research Mode to get new discoveries daily or weekly, so your tree keeps growing even while you're away.

LEARN MORE
DNA Match

Find more DNA matches across all DNA tests

Combine your DNA data with your family tree to unlock the full power of YourRoots DNA Match. Connect with relatives across major testing services — Ancestry, 23andMe, MyHeritage, and more.

View your matches' maps and trees to identify shared ancestors, and soon you'll be able to add them directly to your own tree and map.

LEARN MORE
Ancestry Reports

Ancestry DNA analysis that goes deeper than others

Unlock exclusive reports that reveal your deeper origins.

  • Deep Ancestry Report — Analyze 130+ ethnicities, sub-regions, and 1,800+ communities in one detailed view.
  • Global & Native American Reports — Developed with Stanford researchers to uncover hidden ancestries across all 22 chromosomes.
  • Ancient DNA Series — Compare your DNA with 1,000+ ancient genomes from Viking, Celtic, and early American civilizations.
LEARN MORE