Gaius Epidius Marullus was a Roman tribune who rose to fame for the "diadem" incident with Julius Ceasar in 44 BCE.
There was already an increasing fear that Julius Caesar would become an autocrat due to his ongoing populist reforms and policies. During this time, Marullus passed next to the statue of Julius Caesar on the Rostra and saw a diadem, which is a type of crown. He immediately decided to remove the crown from the statue and while doing it, herd some people who were in the area cry "Rex" or King to Ceasar. After hearing this, Marullus had these people arrested. However, Caesar had these people freed and ultimately decided to publicly strip of Marullus from his position.
