Question: Who was the grandfather of the man confined to the American coastal pentagonal bastion fort known for its role in the War of 1812?
Sentence (from "Frank Key Howard"): He was arrested without a warrant just after midnight on September 13, 1861 at his home by U.S. Major General Nathaniel Prentice Banks on the direct orders of General George B. McClellan enforcing the policy of President Abraham Lincoln.
Relevant evidence: No