In 11 CE, a senatus consultum forbade freeborn females under the age of twenty from appearing on the stage or in the arena (as well as freeborn males under the age of twenty-five).


Source: Murray, Steven. "Female Gladiators of the Ancient Roman World" Journal of Combative Sport. July 2003. 5 May 2011
<http://ejmas.com/jcs/jcsart_murray_0703.htm>