This ruler allegedly placed air pillows instead of cushions under dinner guests, thus inventing the first whoopie cushions. After being discovered hiding in a latrine, soldiers killed this ruler and threw his (15[1])body into the Tiber, earning him the nickname “Tiberinus.” This ruler established a “women’s senate,” whose members included his relatives Julia Soaemias (“soh-AYE-me-as”) and Julia Maesa. During a feast, this ruler allegedly (*) smothered (10[1])guests to death by dumping flower petals on them. (10[2])According to Cassius Dio, motivated by the desire to produce “godlike children,” this ruler controversially married Aquilia Severa, a Vestal Virgin. This ruler erected a temple containing a black stone from Emesa, which personified the sun god that this ruler was named after. For 10 points, name this Roman emperor, who preceded Severus Alexander and may have been transgender. ■END■