Yes, a No. 3 seed has won the Super Bowl. The most notable instance occurred in the 2005 season when the Pittsburgh Steelers, who were the No. 6 seed in the AFC, won Super Bowl XL. Additionally, the New York Giants, as a wild card team (which is technically lower than a 3 seed), won Super Bowl XLII in the 2007 season, but the 3 seed itself has not specifically won the title.
Saints
No, they have not.
No they have not
No Cleveland Browns team has ever appeared in a Super Bowl.
No, not only did Archie Manning not win a Super Bowl but none of the teams he played for ever made the playoffs.
Never
They will eventually.
nope
No
No, they have not.
No
No.