Astrid Messer VII (SEY 2661 - 2701) was one of two Imperators of the United Empire of Earth (UEE) from 2697 to 2701. She seized power from her aunt Illyana Messer VI after the latter died of a sudden stroke. Agents loyal to Illyana smuggled her youngest son and named successor, Samuel, away from Earth (Sol III) before Astrid could have him assassinated. As Imperator, Astrid devoted military resources to locating Samuel, expanded censorship, and ordered mass arrests of journalists who spoke against the conflict. She was assassinated by Samuel's agents in 2701, which led to his ascension to Imperator.