Mary Westmacott

Dame Agatha Mary Clarissa Mallowan, Lady Mallowan, usually known by her first married name, Agatha Christie, was an English author known for her 66 detective novels and 14 short-story collections, particularly those revolving around fictional detectives Hercule Poirot, Tommy and Tuppence, and Miss Marple. She is widely regarded as one of the greatest writers, particularly in the mystery genre.