Earl Ranelagh is in Earl Ireland.
In 1674 Richard Jones 1st Earl Ranelagh [aged 32] was created 1st Earl Ranelagh. Elizabeth Willoughby Countess Ranelagh [aged 41] by marriage Countess Ranelagh.
On 9th January 1696 Richard Jones 1st Earl Ranelagh [aged 54] and Margaret Cecil Countess Ranelagh [aged 24] were married. She by marriage Countess Ranelagh. The difference in their ages was 30 years. She the daughter of James Cecil 3rd Earl Salisbury and Margaret Manners Countess of Salisbury.