"John [1st Viscount] was succeeded in turn in the viscountcy and estates by his brothers Edmond (d.1556) and James (d.1558), both of whom made settlements of their property in default of male heirs on their kinsman, James [FitzRichard] Barry (d.1581)[1] and his descendants. These settlements seem to have been made under coercion, and on the death of James Barry, the 3rd Viscount, in 1558 the viscountcy should have become extinct and the barony and estates should have passed to Edmond More Barry of Rathcoban, but this did not happen, for the estates were seized by James Barry (d.1581), who also assumed both the barony and the viscountcy."[2]
Excerpt (edited for clarity) from Barrymore: Records of the Barrys of County Cork from the Earliest to the Present Time, With Pedigrees:[3][4]
John Reagh Lord Barry married Ellen Fitzgibbon, daughter of the 9th White Knight of Clangibbon, and had 3 sons — John, Edmond, and James.
He was succeeded by the eldest son John, alias Lord Barrymore, 17th Lord of Olethan, who is mentioned in the pedigree given by Viscount Buttevant to Sir George Carew. This son was born in 1517 or 1518, not being more than 17 or 18 years old when Stevyn Ap Parry wrote to Thomas Cromwell in October 1535, as follows :
"Moreover there came in to my Lord James [Butler][5] one called my Lord Barrowe [= the younger John Barry], who can speak very good English, and is of not more than 17 or 18 years. He is a great inheritor, and if he had right, and laid very sore to Cormak Oge and to one Makerte Ryaghe [MacCarthy Reagh],[6] the which is son-in-law to Cormak Oge, and is my Lord of Kildare's sister's son."[7][8]
Pedigree
The Wikipedia page on the Earls of Barrymore traces the family title from Baron (created 1261) to Viscount Buttevant (created 1541) to Earl of Barrymore (created 1627).
John and his eldest son John appear as the final two of the 14 Barons, before the peerage was "upgraded" to that of Viscount Buttevant in 1541.[9]
Following are the 6 successive Viscounts Buttevant, the first 3 being brothers:
James Barry, 4th Viscount (c. 1520–1581), followed by son:
David Barry, 5th Viscount (1550-1617), followed by grandson (i.e., skipping a generation):
David Barry, 6th Viscount (1604–1642) (created Earl of Barrymore in 1627/28)
Sources
↑ The said James FitzRichard Barry, who became 4th Viscount Buttevant through a campaign of "exceptional violence" (see his profile), was the grandson of James Barry, Lord of Ibane, and Elane MacCarthy of Muskerry.
↑ Nicholas Kingsley, Landed families of Britain and Ireland: Earls of Barrymore, history blog, posted 1 May 2020:
↑ "Lord James Butler" possibly refers to James, soon to be 9th Earl of Ormond, who had been raised in the English Court and was a staunch ally of the Crown.
↑ In the final phrase "my Lord of Kildare's sister's son," Stevyn ap Parry appears to refer to Eleanor FitzGerald, sister of Gerald (9th Earl of Kildare) and mother of Cormac, 13th Prince of Carbery.
Cokayne's detailed "Barry Pedigree" shows the family tree over 10 generations:
Cokayne, George Edward ed. Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Vol. I: Ab Adam - Basing, 2nd edition. (London,1910), see pedigree chart following p.450: