Augusta Ada Byron
Countess of Lovelace
lived from
1815 to 1852

Ada Lovelace was a daughter of Lord Byron who became interested in Babbage's analytic engine and described how it could be programmed. The computer language ADA is named in her honour.

See more at:   http://www-history.mcs.st-andrews.ac.uk/Biographies/Lovelace.html