Which Cowboys linebacker won Super Bowl V MVP even though his team lost?

Which Cowboys defensive lineman shared Super Bowl XII MVP with teammate Harvey Martin? Which Cowboys cornerback won Super Bowl XXX MVP? Which Buccaneers safety won Super Bowl XXXVII MVP? Which Bears defensive end won Super Bowl XX MVP? Which Chiefs quarterback won Super Bowl MVP three times? Which Buccaneers quarterback won Super Bowl LV MVP? How many Super Bowl MVP awards did Joe Montana win? What is the nickname of the Pro Football Hall of Fame's jacket given to inductees?