Julia Livilla Agrippina) to overthrow Caligula and to replace him by his brother-in-law Marcus Aemilius Lepidus (Drusilla's widower, but also lover of Agrippina and Livilla). Livilla and her sister Agrippina the Younger were banished to the Pontine Islands (they were most likely separated in their exile and each one sent to a different island). After the deaths of Caligula, his fourth wife Milonia Caesonia, and their daughter Julia Drusilla, she returned from exile on the orders of the new emperor, Livilla's paternal uncle Claudius. Later in 41, she fell out of favour with Messalina (Claudius's third wife) and was charged by her
Emperor Kang of Jin empress. Later in 343, Emperor Kang's other uncle, Yu Yi (庾翼), proposed a major military campaign against Later Zhao, in coordination with Former Yan's ruler Murong Huang and Former Liang's ruler Zhang Jun, both nominal Jin vassals. Most officials feared this large undertaking, but with support from Yu Bing, Huan Wen (Emperor Kang's brother-in-law, having married his sister Sima Xingnan (司馬興男) the Princess Nankang), and Sima Wuji (司馬無忌) the Prince of Qiao, Emperor Kang approved the plan and mobilized troops. Yu Bing was made a governor to coordinate with Yu Yi, and He Chong was recalled to replace him, and