Read this guided excerpt from the prologue of Shakespeare’s play Henry V, in which King Henry V is referred to as Harry.

"A kingdom for a stage, princes to act
And monarchs to behold the swelling scene!"

The "kingdom" represents a stage, and the "princes" are the actors who will perform on the stage. The "monarchs" are the audience who come to watch the performance.

"Then should the warlike Harry, like himself,
Assume the port of Mars;

Shakespeare introduces King Henry V, suggesting that he take on the role or appearance of Mars, the Roman god of war.

and at his heels,
Leash'd in like hounds, should famine, sword and fire
Crouch for employment."

If King Henry V were to assume the role of Mars, then hunger, war, and destruction would be released like dogs and ready to do his bidding like servants.

This prologue excerpt mostly introduces

the character of King Henry V, or Harry.
the setting of the port of Mars.
the conflict of a war between England and France.
the setting of the fields of war.

the character of King Henry V, or Harry.