In the late summer and autumn of 1814, "Severn" was an important participant in the War of 1812, as she was stationed in Chesapeake Bay to blockade the Patuxent River. It was from this point that the British launched their invasion of Maryland, which led to the Battle of Bladensburg and then the subsequent burning of Washington D.C. On 2 July "Severn" and "Loire" captured two schooners, two gun-boats, and a sloop. They also destroyed a large store of tobacco.