Biography of William O'Brien 2nd Earl Inchiquin 1640-1692

William O'Brien 2nd Earl Inchiquin and Margaret Boyle Countess Inchiquin were married. She by marriage Countess Inchiquin. She the daughter of Roger Boyle 1st Earl Orrery and Margaret Howard Countess Orrery. He the son of Murdough O'Brien 1st Earl Inchiquin and Elizabeth St Leger Countess Inchiquin.

William O'Brien 2nd Earl Inchiquin was was appointed the first Governor of Jamaica.

Before 1636 [his father] Murdough O'Brien 1st Earl Inchiquin (age 21) and [his mother] Elizabeth St Leger Countess Inchiquin were married.

Around 1640 William O'Brien 2nd Earl Inchiquin was born to [his father] Murdough O'Brien 1st Earl Inchiquin (age 26) and [his mother] Elizabeth St Leger Countess Inchiquin.

In May 1654 [his father] Murdough O'Brien 1st Earl Inchiquin (age 40) was created 1st Earl Inchiquin. [his mother] Elizabeth St Leger Countess Inchiquin by marriage Countess Inchiquin.

In 1662 [his son] William O'Brien 3rd Earl Inchiquin was born to William O'Brien 2nd Earl Inchiquin (age 22) and Margaret Boyle Countess Inchiquin. He married April 1691 his first cousin once removed Mary Villiers Countess Inchiquin and had issue.

On 9th September 1674 [his father] Murdough O'Brien 1st Earl Inchiquin (age 60) died. He was buried at St Mary's Cathedral, Limerick, County Limerick. His son William (age 34) succeeded 2nd Earl Inchiquin.

John Evelyn's Diary. 26th July 1680. My most noble and illustrious friend, the Earl of Ossory (age 46), espying me this morning after sermon in the privy gallery, calling to me, told me he was now going his journey (meaning to Tangier [Map], whither he was designed Governor, and General of the forces, to regain the losses we had lately sustained from the Moors, when Inchiquin (age 40) was Governor). I asked if he would not call at my house (as he always did whenever he went out of England on any exploit). He said he must embark at Portsmouth, Hampshire [Map], "wherefore let you and me dine together to-day; I am quite alone, and have something to impart to you; I am not well, shall be private, and desire your company"..

In 1685 [his mother] Elizabeth St Leger Countess Inchiquin died.

In April 1691 [his son] William O'Brien 3rd Earl Inchiquin (age 29) and [his daughter-in-law] Mary Villiers Countess Inchiquin were married. He the son of William O'Brien 2nd Earl Inchiquin (age 51) and Margaret Boyle Countess Inchiquin. They were first cousin once removed.

On 16th January 1692 William O'Brien 2nd Earl Inchiquin (age 52) died. His son William (age 30) succeeded 3rd Earl Inchiquin. [his daughter-in-law] Mary Villiers Countess Inchiquin by marriage Countess Inchiquin.