On Tuesday, 10 February 2004 at 09:49:57 UTC+10, Stewart Baldwin wrote:

On Mon, 9 Feb 2004 23:03:50 +0000 (UTC), The...@aol.com wrote:

I noted in recently reviewing a book by Sean Duffy on Robert _the_
Bruce and 14th century Ireland a reference to a Scots-Irish marriage
which may be helpful in the ancestral hunt.

This was a reference to Angus Og (mac Angus) mac Donald, ancestor of
the subsequent MacDonald Lords of the Isles in Scotland. He is noted
in SP as having married Agnes, daughter of Guy O'Cathan of Ulster;
beyond this reference, I do not recall any further detail in SP,
except that there were no further details concerning the O'Cathan
family.

Duffy, in his book, refers to this same marriage, stating that Angus
Og married into the family of the Uí Chatháin kings of Ciannachta >(located in northern Ulster). I find a number of references to this
same family on the Internet, primarily having to do with later >individuals, and the fact that the Kane family alleges a descent from
this 14th cent. family.

If you, or anyone of the list, might have additional details
concerning this family (and in particular the 'Guy O'Cathan' referred
to in SP), this would be of interest to many (and any) MacDonald >descendants.

The O Clery Book of Genealogies (Analecta Hibernica 18, 1951) has an
Ua Chatháin genealogy on pp. 38-9 that present several cadet branches
(some of whom would seem to be in the period you are talking about,
judging from a rough count of generations), but no Guy. They are
shown to be descended from the Uí Néill king Fergal mac Máel Dúin (d. 722) of the Cenél Eogain.
Stewart Baldwin

"Guy" is an angliisation of the Gaelic name ConMuighe "hound of the Plain"), which in common parlance was often shortened to CuMoy and from thence to Cooey. The father of Una aka Agnes O Cathain was generally known as Cooey na NGall O Cathain. He was the
son of Magnus Catha Duin O Cathain (Magnus" of the Battle of Down" O Cathain, who was killed at the Battle of Down in 1260. The Irsh chiefs wore their saffron kilts in battle against armoured foreigners. Cooey learned that lesson and adopted armour
himself, hence his epithet of "na nGall" (of the Foreigners'). His tomb slab in Dungiven priory bears the effigy of an Irish chief in armour.

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