Riordan
Riordan is a surname of Irish origin (Irish: ''Ó Ríordáin''; Old Irish: ''Ó Ríoghbhardáin''); ''Rearden'' and “Reardon” are variants of it. From ''ri'' “king” and ''bard'' “poet”, it means “royal poet”. In Irish tradition, the poet was very highly regarded in any royal household, as he acted as a scholar, historian and advisor to the king. Provided by Wikipedia-
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