Stage name of the Dutch exotic dancer Margaretha Geertruida "Grietje" Zelle MacLeod (4,4)

(Other definitions for mata hari that I've seen before include "Infamous dancer executed as a German spy" , "Exotic Dutch dancer, executed by the French as a German, 1917" , "Dutch dancer and secret agent, executed in 1917" , "Dutch dancer and spy" , "Dutch femme fatale executed by the French in 1917 as a German spy" .)