Fisher’s Folly was a house in Bishopsgate Street, in Bishopsgate Ward Without built by Jasper Fisher around 1580. The Earl of Oxford owned it and sold it to William Cornwallis (c. 1545 - 1611) in 1588. By 1603, Roger Manars (presumably Roger Manners) owned the property. In the Seventeenth Century, the Earls of Devonshire owned it, and by 1773 it was gone.