Earl Mayo is in Earl Ireland.
On 24th June 1785 John Bourke 1st Earl Mayo [aged 85] was created 1st Earl Mayo.
On 2nd December 1790 John Bourke 1st Earl Mayo [aged 90] died. His succeeded son John [aged 61] succeeded 2nd Earl Mayo, 2nd Viscount Mayo of Monycrower in Mayo, 2nd Baron Naas of Naas in Kildare. Mary Leeson Countess Mayo [aged 56] by marriage Countess Mayo.
On 20th April 1792 John Bourke 2nd Earl of Mayo [aged 63] died. His succeeded brother Joseph [aged 56] succeeded 3rd Earl Mayo. Elizabeth Meade Countess Mayo by marriage Countess Mayo.