The red lady
Inspired from this (actually existed)
1500–1534 1528 - 1534 One of the most cunning pirates of the sixteenth century who never revealed her identity. She commonly disguised herself as a singer or an entertainer to be brought on ships and once the crew ever advance on her or leave her by herself she would take her disguise off having a top, pants and her weapons underneath. She would then immediately kill all aboard the ship and sail to sea.