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| Hanlon | numerous: all provinces especially Ulster & Midlands. Ir. Ó h-Anluain (great champion). A major sept of Oriel (Armagh). IF & SGG. |
| Ó h-Anluain | rare: Dublin etc. Ir.Lang. See O'Hanlon. |
| Ó h-Anluain | O'Hanlon: líonmhar gach áird: clann tábhachtach de chuid Oirghialla a bhí mar thaoisigh ar Uí Nialláin (Ard Mhacha). Ciallaíonn "anluan" gaiscíoch mór, is cosúil. IF. |
| O'Hanlon | : numerous: all areas, especially Ulster. Ir. Ó h-Anluain (great hero). An important sept of Oriel (Armagh etc). See also Hanlon. IF. |
Parishes where a Hanlon and a second surname married each other.
This list shows total Hanlon Roman Catholic marriages by county.
Click on the county to see detail.