The Book of Judges relates how Avimelekh, the son of Gideon rose to power and made himself a king by killing his seventy brothers. His eventual fate came, when he sieged Teiveitz and wanted to take a fortified tower (Judges 9:53):
וַתַּשְׁלֵ֞ךְ אִשָּׁ֥ה אַחַ֛ת פֶּ֥לַח רֶ֖כֶב עַל־רֹ֣אשׁ אֲבִימֶ֑לֶךְ וַתָּ֖רִץ אֶת־גֻּלְגָּלְתּֽוֹ׃
And a certain woman cast an upper millstone upon Avimelech's head, and broke his skull.
Most commentaries I saw discuss the upper millstone regarding this verse, but they don't tell anything about the identity of this woman. For me it's quite strange that a woman could lift such a heavy stone, yet I failed to find anything about her. Do you know anything particular about her that escaped my attention? Besides being a serious blow to the ego of Avimelekh, why is it important that he was killed by a woman?