A theachtaire tig ón Róimh explained

A theachtaire tig ón Róimh ("Messenger, come from Rome") is a poem "somewhat doubtfully attributed to Giolla Brighde Mac Con Midhe"

The poem insists upon the need for genealogy to "preserve due class distinctions in Irish society, while the versifying of battle deeds guarantees immortal fame for the chieftains concerned."

Extracts

(i.e., Niall Noígíallach, Conn Cétchathach and Cormac mac Art)

References