Sentence:  I spent five days in conversing with many others of the ancient learned. I saw most of the first Roman emperors. I prevailed on the governor to call up <WSD>Heliogabalus's</WSD> cooks to dress us a dinner, but they could not show us much of their skill, for want of materials. 
Meaning of the word marked with <WSD> tags:  A Roman emperor of the Severan dynasty who reigned from 218 to 222. He was known for perverse and decadent behavior with regard especially to sex, religion, and food.