The Carolina Panthers are a professional American football club based in Charlotte, North Carolina.
 They play the southern division of the National Football Conference (NFC), one of the two conferences in the National Football League (NFL).
 On October 26, 1993, NFL owners unanimously selected Carolina as the 29th NFL franchise and the first expansion team since 1976.
 Carolina Panthers Owner/Founder Jerry Richardson, became just the second former player to own an NFL team along with George Halas of the Chicago Bears.
 The Panthers lost Super Bowl 50 to Denver Broncos after a 15-1 season.
Fayez Sarofim (Arabic: فايز صاروفيم‎ ‎ ) (born 1929) is a Coptic American heir to the Sarofim family fortune, fund manager for a number of Dreyfus family stock funds, an original and second largest shareholder of Kinder Morgan (NYSE: KMI) and part owner of the NFL team Houston Texans; ranked 5th Most Valuable NFL team worth $1.85 billion.
 He is divorced with five children, and lives in Houston, Texas.
 With an estimated current net worth of $1.91 billion, Sarofim is ranked by "Forbes" as the 847-richest person in the world, in 2015.
 His investment firms oversees over $30 billion in assets.
Doron Richard Jensen (born September 1, 1958) is an American restaurateur and principle founder of Timber Lodge Steakhouse, Homestyle Buffet, and Old Country Buffet.
Steve Rotfeld is an American television producer and Emmy Award-winning writer.
 He is the principle founder of two independent broadcast and syndication production companies: Steve Rotfeld Productions (SRP) and The Workshop, which he co-founded with Tom Farrell.
 Through SRP and The Workshop, Rotfeld has produced and distributed programming that has been syndicated on national broadcast and cable networks and sold throughout the world.
The Dallas Texans played in the National Football League (NFL) for one season, 1952, with a record of 1–11.
 The team is considered one of the worst teams in NFL history, both on (lowest franchise winning percentage) and off the field.
 The team was based first in Dallas, then Hershey, Pennsylvania, and Akron, Ohio, during its only season.
 The Texans were the last NFL team to fold.
 Many players on the 1952 roster went to the new Baltimore Colts franchise in 1953.
 The American Football League (AFL) had a 1960 charter member named the Dallas Texans (who later became the Kansas City Chiefs), but the AFL Texans have no relationship with the earlier NFL team.
Hugh Alfred Calder (December 25, 1872 – August 6, 1964) was a real estate developer and politician in Alberta, Canada.
 He served as an alderman on Edmonton City Council between 1912 and 1916 and was a principle founder of the Village of West Edmonton.
The Chicago Tigers of the American Professional Football Association (APFA) played only in the first year of the league (1920) and, because of this, have the distinction of being the first NFL team to fold.
 They had a record of 2 wins, 5 losses and 1 tie.
 The team played its home games at Chicago's Wrigley Field (then called Cubs Park) and was the first NFL team to do so.
 The Tigers were never formally members of the APFA.
 However, since the team played seven games against APFA teams in 1920, resulting in a 1–5–1 league record, they are generally included in the league standings.
Mike Robbie ( Born April 5, 1943 ), is a former General Manager of the Miami Dolphins and the son of the late Joe Robbie, former owner of the team.
Kevin Fulbright Warren (born November 17, 1963) is an attorney and professional sports executive.
 He is currently the Chief Operating Officer of the Minnesota Vikings of the National Football League, and is the highest-ranking African-American executive working on the business side for an NFL team.
 In 2015, Warren became the first black chief operating officer of an NFL team.
Joseph "Joe" Robbie (July 7, 1916 – January 7, 1990) was an American attorney, politician, and the principle founder of the Miami Dolphins.

Question: The father of Mike Robbie was the principle founder of what NFL team?
Answer: the Miami Dolphins