Ingleby reportedly fought in battle during the English Civil War, dressed as a man in a full suit of armor.

Ingelby was the daughter of Sampson Ingleby, a member of the landed gentry and a steward for Henry Percy, 9th Earl of Northumberland, and Jane Lambert of Killinghall.

[5][4] During the English Civil War, she reportedly fought alongside her brother, Sir William, in the Battle of Marston Moor in 1644 while disguised as a man in a full suit of armour.

[5] Reluctantly, she eventually allowed Cromwell to enter the castle, but held him at gun point in the library for the entire night, preventing him from searching the house.

[7][9] Ingelby lived her final years working on a nearby farm in North Yorkshire to help pay off Parliament-imposed fines on her Royalist and recusant family.