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 body into the Tiber, earning him the nickname “Tiberinus.” This ruler established a “women’s (15[1])senate,” whose members included his relatives Julia (15[1])Soaemias (15[1])(“soh-AYE-me-as”) and Julia (15[1])Maesa. During a feast, this ruler allegedly (*) smothered guests to death by dumping flower petals on them. 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 (10[1])a black stone (10[1])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■