William Fitzwilliam, 3rd Viscount Fitzwilliam (see here and here),
mar Mary Luttrell
[born est c.1620,
descendant of Edward I].
The Fitzwilliams had left Dundrum Castle by 1653, and did not live there again.
After the Restoration 1660 he lived at Simmonscourt Castle.
He succ his brother as 3rd Viscount 1667.
Mary died pre-1673
[Complete Peerage] says 3rd Viscount died pre-1673.
Though [Ball, vol.2, 1903] says he died 1675, attended by a Catholic priest, in the parish of St.Nicholas Within, Dublin (the area just in front of Christ Church, on the S side of it).
He was bur Donnybrook church.
3rd Viscount and Mary had issue:
Please donate to support this site.
I have spent a great deal of time and money on this research.
Research involves travel and many expenses.
Some research "things to do"
are not done for years, because I do not have the money to do them.
Please Donate Here to support the ongoing research and to keep this website free.