Släkthistoria för Oregan
Oregan Vad efternamn betyder
Irish (Cork and Limerick): Anglicized form of Gaelic Ó Riagain ‘descendant of Riagán’ a personal name which is perhaps akin to ríodhgach ‘impulsive furious’. There are two major families of this surname in Meath and Munster; traditionally they both claim descent from a nephew of Brian Boru called Riagán (see Regan).
Källa: Dictionary of American Family Names 2nd edition, 2022
