Letter of R. Hadsor to Sir R. Cecil, concerning the Earl of Ormond's title and lands and saying that O'Donell has sent wines from Spain to Donell O'Solevan, a rebel. Tyrone's son is to marry the Earl of Argile's daughter. March 13, 1602.

Míreanna comhchosúla

• In memoriam O'Donel Thornley Browne. By B. Solomons.
  de réir: Solomons, Bethel
  Foilsithe / Cruthaithe: (1952)
• O'Donnell, Family of: A collection of papers relating to the O'Donnell (O'Donel, O'Donell) families of Austria and of Mayo, 19th c.
• O'Donel Family: Plans of and copies of inscriptions at the O'Donel family vault, Strade Abbey, Co. Mayo, nine documents written c.1896.
• Count O'Donell and the Austrian emperor.
  de réir: O'Cochlain, Rupert S.
  Foilsithe / Cruthaithe: (1956)
• 'Photostat' copies of documents from the Collection of Douglas, Count O'Donel of Austria, including a letter to Hugh, Count O'Donel, in the service of Austria, dealing with family affairs, three letters from Col. O'Farrell re Maj.-Gen. C. O'Donel, pecuniary petition by Prince Rudolphe Cantacuzene de Valachie to the Empress and his certificate of ancestry, 1746 - 1861