Saint Lawrence

Nicholas ✕ Alice Plunkett
- Stephen ✕ Elinor Holywood
  - Christopher, Lord Howth ✕ Anne Plunkett
    - Margaret ✕ William Darcy
    - Robert (ca 1435 - 1483), Lord Howth, lord high chancellor of Ireland, chancellor of the Exchequer of Ireland ✕ Alice White
      - Alice ✕ John Netterville
      - Nicholas (ca 1460 - 1526), Baron Howth, lord high chancellor of Ireland, alderman in the Parliament of Dublin ✕ Alison Fitzsimons
      - = Nicholas ✕ Genet Plunkett
        Eleanor ✕ Walter Chevers, alias Walter Chevers of Macetown, Knight of Macetown
    - = Robert ✕ (1478) Joan Beaufort ( - 1518)

Saint Lawrence

2 — Christopher, Lord Howth ✕ Anne Plunkett

3 — Eleanor ✕ Walter Chevers, alias Walter Chevers of Macetown, Knight of Macetown

6 — Nicholas (ca 1460 - 1526), Baron Howth, lord high chancellor of Ireland, alderman in the Parliament of Dublin ✕ Alison Fitzsimons ✕ Genet Plunkett

7 — Robert (ca 1435 - 1483), Lord Howth, lord high chancellor of Ireland, chancellor of the Exchequer of Ireland ✕ Alice White ✕ (1478) Joan Beaufort ( - 1518)

8 — Stephen ✕ Elinor Holywood

Nom de famille "Saint Lawrence"