Early Origins of the O'Reily family
County Cavan. They were known as the Princes of East Breffny, descended from Raghallaigh, Prince of Breffny in 981. They maintained their territory during the Anglo/ Norman invasion of Strongbow, Earl of Pembroke, in 1172, but Sir John O'Reilly, Prince of Breffny surrendered the principality to Queen Elizabeth I thereby ensuring that his territories remained intact.
Early History of the O'Reily family
Another 189 words (14 lines of text) covering the years 1598, 1669, 1630, 1695, 1689, 1640, 1703, 1689, 1646 and 1691 are included under the topic Early O'Reily History in all our PDF Extended History products and printed products wherever possible.
O'Reily Spelling Variations
spelling variations of the surname O'Reily are preserved in these old documents. The various spellings of the name that were found include O'Reilly, O'Reilley, O'Reily, O'Rielly, O'Riely, O'Riley, O'Rilley, Reel and many more.
Early Notables of the O'Reily family (pre 1700)
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Migration of the O'Reily family to the New World and Oceana
Some of the first settlers of this family name were:
O'Reily Settlers in New Zealand in the 19th Century
O'Reily Family Crest Products