The county's fifth courthouse was built in 1892–1893, on land donated by former Union officer and Virginia lawyer and delegate
George Carr Round. After several legal disputes, including one decided by the
Virginia Supreme Court, the county government moved to this building near the county's most important railroad station, from the centrally located but increasingly isolated
Brentsville Courthouse and Jail. This became the county's courthouse in 1897. On July 21, 1911, U.S. President
William Howard Taft and Virginia Governor
William Hodges Mann shook hands on the courthouse lawn during the
Manassas Peace Jubilee commemorating the 50th anniversary of the
First Battle of Bull Run, the first major conflict of the American Civil War. The town of Manassas became large enough for the
Virginia General Assembly to incorporate it as a city in the 1970s, which caused several complications for the old courthouse. After negotiations, title to the courthouse building and the jail (razed years later) remained in the County, and various town (city) offices moved out of the building. The county property became surrounded by city land, much of which became included in a national historic district in 2004. Meanwhile, by 1980, the space had become too cramped for judicial operations in the growing county, so another courthouse was built about a mile away. This building continued actively use as a county courthouse until 1982. The current (modern) courthouse containing both the Prince William Circuit Court and the Prince William District Court is at 9311 Lee Avenue in Manassas, VA 20110, and has several parking lots nearby. ==Architecture==