Frances Coke, Viscountess Purbeck

Frances Coke
Viscountess Purbeck
Portrait of Frances Coke, Viscountess Purbeck, by Michiel Jansz. van Mierevelt (1623)
Born1602 (1602)
London
Died4 June 1645(1645-06-04) (aged 42–43)
BuriedUniversity Church of St Mary the Virgin, England
Noble familyCoke
Spouse(s)John Villiers, 1st Viscount Purbeck
FatherSir Edward Coke
MotherElizabeth Hatton

Frances Coke, Viscountess Purbeck (August 1602 – 4 June 1645), was the sister-in-law of George Villiers, 1st Duke of Buckingham, and the central figure in a notable sex scandal within the English aristocracy of the early 17th century that was known at the time as "the Lady Purbeck’s business".