of Roscommon (Earldom)
of Roscommon (Earldom)
A peerage of the Kingdom of Ireland.
Letters patent issued on Fri 5th Aug 1622
To James Dillon as Promotion in the peerage of Ireland.
Holders
| Number | Surname | Forenames | Held from | Held to |
|---|---|---|---|---|
| 1st | Dillon | James | Fri 5th Aug 1622 | - |
External identifiers
Wikidata: Q5326362