Marquess of Headfort is in Marquis and Marquess Ireland.
On 29th December 1800 Thomas Taylour 1st Marquess of Headfort [aged 43] was created 1st Marquess of Headfort. Mary Quin Marchioness of Headfort by marriage Marchioness of Headfort.
On 24th October 1829 Thomas Taylour 1st Marquess of Headfort [aged 71] died. His succeeded son Thomas Taylour 2nd Marquess of Headfort [aged 42] succeeded 2nd Marquess of Headfort.
On 6th December 1870 Thomas Taylour 2nd Marquess of Headfort [aged 83] died. His succeeded son Thomas Taylour 3rd Marquess of Headfort [aged 48] succeeded 3rd Marquess of Headfort.