Grace O'Malley was referred to as 'the most notorious woman on all the western coasts, a notable traitress and the nurse of all rebellions in the province in thirty years'.
Judith Cook, the author of a new book about the pirate queen of 16th century Ireland, tells Martha what drew her to this unsung Celtic heroine.
Pirate Queen, The Life of Grace O'Malley By Judith Cook Published by Tuckwell Press ISBN 1 86232 2473