Spelled: Tooley, Tooly, Toole, Tool, Toile, O'Toole, O'Tool, Tuley, Tulley, Tully, Tuly and many more.
First found in County Kildare seated at O'Toole's Castile, where they were descended from Tuathal, King of Leinster who died in 950 A.D.
Throughout history, very few Irish surnames have exclusively maintained their original forms. Before being translated into English, Tooley appeared as O'Tuathail, which is derived from Tuathal, which means people mighty.
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