"A King, and No King" by Francis Beaumont and John Fletcher is a tragicomedy written in 1611. King Arbaces returns victorious from war, only to discover an overwhelming and forbidden attraction to his sister Panthea, whom he hasn't seen since childhood. As he struggles desperately against his incestuous passion, political intrigue and questions of royal legitimacy swirl around him. The play explores themes of self-control, identity, and the consequences of absolute power, while keeping audiences guessing until a surprising revelation changes everything. (This is an automatically generated summary.)