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| Armstrong | numerous in Ulster, also Mayo/Sligo & Meath/Monaghan. Scottish. A famous Border name. Ir. Tréanlámhach. It can also be an anglicisation of Mac Thréinfhir and Ó Labhradha Tréan, q.v. SGG. |
| Strong | fairly numerous: Ulster, Laois-Offaly etc. English epithet, in Ulster 17 cent. |
| Stronge | fairly numerous: Ulster, especially East. See Strong. |
Parishes where a Armstrong and a second surname married each other.
This list shows total Armstrong Roman Catholic marriages by county.
Click on the county to see detail.