Baron Darcy of Navan is in Baron Ireland.
On 13th September 1721 James Darcy 1st Baron Darcy of Navan [aged 71] was created 1st Baron Darcy of Navan with special remainder to male heirs of his daughter Mary Darcy.
On 4th April 1725 James Darcy 1st Baron Darcy of Navan [aged 75] and Margaret Garth Baroness Darcy were married. She by marriage Baroness Darcy of Navan.
On 19th July 1731 James Darcy 1st Baron Darcy of Navan [aged 81] died. His grandson James [aged 24] succeeded 2nd Baron Darcy of Navan.
In 1733 James Jessop aka Darcy 2nd Baron Darcy of Navan [aged 26] died unmarried. Baron Darcy of Navan extinct.