Seven.
The Boston Patriots haven't won any championships, but when they changed their name to the New England Patriots they won 3.
Six
Fifteen.
Seven.
Three.
The Patriots have appeared in the Super Bowl six times, winning the NFL title three times. Here are the results (victories in bold):Super Bowl XX (1-26-86) -- Chicago 46, New England 10.Super Bowl XXXI (1-26-97) -- Green Bay 35, New England 21.Super Bowl XXXVI (2-3-02) -- New England 20, St. Louis Rams 17.Super Bowl XXXVIII (2-1-04) -- New England 32, Carolina 29.Super Bowl XXXIX (2-6-05) -- New England 24, Philadelphia 21.Super Bowl XLII (2-3-08) -- New York Giants 17, New England 14.
6.
4 championships (1999,2003,2005,2007)
Three
5
77
World/NFL Championships/Superbowls-4 Conference championships-6