Theano was a disciple of Pythagoras. She became his wife and gave him two sons and a daughter.
She was also the spokesperson of Crotone's women. Indeed pythagorean's rools forbade husbands to beat their wife, and the husband was obligated to be completely faithful.
When Pythagoras died, Theano took the helm of the pythagorean school with her sons.

Difficulty : ******

Tested, logical.
Not require any specific method, but you'll need to be very, very focused.
Good "blackenage".