The Miradi Empire was an interstellar political entity, headed by the Emperor of Miradi, and had established contact with the United Federation of Planets by the 23rd century.
By the early 23rd century, the Miradi had established diplomatic relations with the Vulcans and sent an ambassador, and her young daughter Baroness Amalia, to the planet Vulcan. (TOS - Star Trek II Short Stories short story: "The Blaze of Glory")