I think there were one or two women in Calabria who were actually 'Ndrangheta bosses. Don't know if they were acting bosses, but they gave orders and the men listened. Think of a Griselda Blanco.
Your right there's definitely been a few in the Camorra and Ndrangheta. I haven't heard of anyone in the Sicilian Mafia,maybe Carmela would know?
The one's i've always had an interest in is
http://en.wikipedia.org/wiki/Maria_Serrainoand
http://www.dailymail.co.uk/news/article-...ten-arrest.html 
