YourRoots by Genomelink
banner

Sign up to explore more

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

Sir Henry O'Neill 1585–1638 – Genealogical Records

Birth Date: 1585

Birth Location: Shanes Castle, Randalstown, Antrim, Ulster, Northern Ireland

Death Date: 8 Apr 1638

Death Location: Ireland

Father: Sir Buidhe

Mother: Rose McGennis

Spouse(s): Martha Stafford

Children(s): Catherine Oneil

In 1585, Sir Henry O'Neill entered the world in Shanes Castle, Randalstown, Antrim, Ulster, Northern Ireland, born to Sir Sean Shane Mcbrian Last Lord Of Clanaboy Oneil Buidhe And Rose Magennis Mcgennis. Sir Henry O'Neill married Martha Stafford, and had children including Catherine Oneil. Sir Henry O'Neill passed away in 1638 in Ireland.

Find more search results for Sir O'Neill
SO

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:
C
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 1585, Sir Henry O'Neill entered the world in Shanes Castle, Randalstown, Antrim, Ulster, Northern Ireland, born to Sir Sean Shane Mcbrian Last Lord Of Clanaboy Oneil Buidhe And Rose Magennis Mcgennis.
  • Sir Henry O'Neill married Martha Stafford, and had children including Catherine Oneil.
  • Sir Henry O'Neill passed away in 1638 in Ireland.

Immediate Family

Parents

Spouses(s)

Children(s)

Sir O'Neill's Ancestors

Self
Sir O'Neill
1585–1638
Birth Place: Shanes Castle, Randalstown, Antrim, Ulster, Northern Ireland
Parents
Sir Sean Shane McBrian, 'Last Lord of Clanaboy' ONeil Buidhe
1550–1617
Shanes Castle, Antrim, Ireland
Rose (Magennis) McGennis
1572–1650
Iveagh, Down, Ireland
Grandparents
Hugh (MacPhelim) O'Neill
1530–1575
Edenduffcarick Castle (later named Shane's Castle), Northern Ireland
Margaret Vardy
1535–1620
Carrickfergus, Antrim, Northern Ireland
Hugh (Feardorach McGennis) ❤️
1530–1596
Drumballroney, Down, Northern Ireland, United Kingdom
Great-Grandparents
Donall ☆
1508–1570
Mary Lady
1506–1566
2nd-Great-Grandparents

Sir O'Neill's Descendants

1.
SO
Sir (Henry) O'Neill (1585–8 Apr 1638) m. Martha Stafford (1595–13 Sep 1637)
  1. 1. Catherine Oneil 1625–1705 m. Thaddeus O'Hara 1625–1705
    1. 1. Elizabeth O’Hara 1655–1725 m. John ((Capt of King Philip's War) Jackson) III 1660–1746
      1. 1. Ambrose Jackson 1695–1745 m. ANNE ("AMY") WYCHE 1692–1751
        1. 1. Anne (Jackson) Harwell 1712– m. Samuel (Little) Harwell 1716–1794

Sir O'Neill's Timeline

2 Records

1585
1585
Birth of Sir Henry O'Neill in Shanes Castle, Randalstown, Antrim, Ulster, Northern Ireland
Shanes Castle, Randalstown, Antrim, Ulster, Northern Ireland
1638
8 Apr 1638
Age 53
Death of Sir Henry O'Neill in Ireland
Ireland

Sources

    Genealogy Event 1
    Event Type: Birth
    Event Date: 1585
    Event Place: Shanes Castle, Randalstown, Antrim, Ulster, Northern Ireland

    Genealogy Event 2
    Event Type: Death
    Event Date: 8 Apr 1638
    Event Place: 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