Commentary
Stewart Baldwin: 'The Osraige pedigree shows two men named Gilla Patraic, grandfather and grandson, who were both sons of a Donnchad, and the Ban Shenchus shows two marriages of a Donnchad of Osraige which produced a son named Gilla Patraic, but it is not clear which marriage belongs to which Donnchad [BS 189, 228]. I tend to agree with Kelley's suggestion that the wife of Donnchad mac Cellaig was Aife, sister of Domnall mac Faelain of Deisi Muman, but the identification is not certain.'
Family
ClaimDetailEvidence
FatherCellach mac Cerbaill, King of Osraige (e859-908) [S2728] [S2731]
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SpouseAife ingen Fáeláin of Munster (e907-) 
Child +Gilla Pátraic mac Donnchada, King of Osraige (e936-996) [S2728] [S2731]
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Attributes
ClaimDetailEvidence
GenderMale
NameDonnchad mac Cellaig , King of Osraige [S2728] [S2731]
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FatherCellach mac Cerbaill, King of Osraige (e859-908) [S2728] [S2731]
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Timeline
ClaimDateDetailAgeEvidence
Birthest 902 (896-908)
 
Title934King of Osraige [S2728] [S2731]
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Death976Ireland [S2728] [S2731]
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Sources
IndexTitle
[S2728] Baldwin, Stewart, "Medieval Genealogy Newsgroup: Eve of Leinster and Radnailt of Dublin" (soc.genealogy.medieval, July 28, 1996 (corrected August 21, 1996)) (https://groups.google.com/d/msg/soc.genealogy.medieval/hki_hNDwY8I/ULhLcNURHRIJ).
[S2731] Baldwin, Stewart, "Kings of Osraige (Ossory)" (http://sbaldw.home.mindspring.com/Ireland/Osr/lists/Osraige.htm).