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Katherine Jones, Viscountess Ranelagh
17th century Anglo-Irish scientist · Lived 1615 to 1691 · aged 76
Katherine Jones, Viscountess Ranelagh, also known as Lady Ranelagh, was an Anglo-Irish scientist in seventeenth-century Ireland and England. She was also a political and religious philosopher, and a member of many intellectual circles including the Hartlib Circle, the Great Tew Circle, and the Invisible College.
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Her correspondents included Samuel Hartlib, Edward Hyde, William Laud, Thomas Hyde, and John Milton. She was the sister of Robert Boyle and is thought to have been a great influence on his work in chemistry. In her own right, she was a political and social figure closely connected to the Hartlib Circle. Lady Ranelagh held a London salon during the 1650s, much frequented by virtuosi associated with Hartlib.