Joan Thynne | |
|---|---|
 by an unknown artist | |
| Born | Joan Hayward baptised 1558 |
| Died | 3 March 1612 (aged 53–54) |
| Nationality | Kingdom of England |
| Occupation | gentlewoman |
| Spouse | John Thynne |
| Parent(s) | Lady, Joan (born Tyllesworth) and Sir Rowland Hayward |
Joan, Lady Thynne, born Joan Hayward (1558 – 3 March 1612) was an English gentlewoman. She took an active role in managing property including Caus Castle. The secret marriage of her son is said to have inspired Shakespeare's retelling of the Romeo and Juliet story. Joan fought the marriage for seven years; she did not forgive her son and took him to court again after he inherited Longleat House.