Complex sentence: Theirs is said in several early tales to have been a sister kingdom to the Uí Fidgenti mentioned above, which the genealogies confirm, but modern scholarship dismisses the two as 8th century add-ons to the Eóganachta pedigree, John V. Kelleher.
Split into simpler sentences: Theirs is said in several early tales to have been a sister kingdom to the Uí Fidgenti mentioned above, which the genealogies confirm. But modern scholarship dismisses the two as 8th century add-ons to the Eóganachta pedigree, John V. Kelleher.