The following are letters and podcast episodes mentioning the above surname:

From Guinness to McGuinness

For decades, the “Mag Aonghusa” clan were the lords of the Ui Eachach Cobha tribe located in what is now part of County Down. Over time, their surname became anglicised as McGennis/McGuinness and their homeland in County Down became known as the Barony of Iveagh. Do you have this surname in your family tree? Maybe…

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