Simplify the following text for a Grade 9 native English-speaking person.
Original: Her husband , Pompeianus , was not involved , but two men alleged to have been her lovers , Marcus Ummidius Quadratus Annianus ( the consul of 167 , who was also her first cousin ) and Appius Claudius Quintianus , attempted to murder Commodus as he entered the theater .
Simplified: Her husband , Pompeianus , was not involved , but two men , alleged to have been her lovers , attempted to murder Commodus as he entered the theater .