Baroness Karen Christenze von Blixen-Finecke (born Dinesen; 17 April 1885 – 7 September 1962) was a Danish author who wrote in Danish and English. She is also known under her pen names Isak Dinesen, used in English-speaking countries; Tania Blixen, used in German-speaking countries; Osceola, and Pierre Andrézel.

From Wikipedia.