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William Clay Ford, the owner of the Detroit Lions and last surviving grandchild of automotive pioneer Henry Ford, has died. He was 88.

Ford Motor Co. said in a statement Sunday that Ford died of pneumonia at his home. Ford help steer the family business for more than five decades. He bought one of his own, the NFL franchise in the Motor City, a half-century ago.

He served as an employee and board member of the automaker for more than half of its 100-year history.

"My father was a great business leader and humanitarian who dedicated his life to the company and the community," William Clay Ford Jr., executive chairman of Ford Motor Co. and Lions vice chairman, said in a statement. "He also was a wonderful family man, a loving husband, father, grandfather and great-grandfather. He will be greatly missed by everyone who knew him, yet he will continue to inspire us all."

Ford was regarded as a dignified man by the select few who seemed to know him well. To the masses in Detroit, he was simply the owner of the Lions who struggled to achieve success on the field despite showing his passion for winning by spending money on free agents, coaches, executives and facilities.

Ford's first full season leading the Lions was in 1964, seven years after the franchise won the NFL title. The only playoff victory he enjoyed was in 1992. The Lions are the only team to go 0-16 in a season, hitting rock bottom in 2008. After an 11-year postseason drought, the Lions improved enough to make the playoffs in 2011 only to lose a combined 21 games over the next two seasons.

"No owner loved his team more than Mr. Ford loved the Lions," Lions President Tom Lewand said in a statement released by the team. "Those of us who had the opportunity to work for Mr. Ford knew of his unyielding passion for his family, the Lions and the city of Detroit. His leadership, integrity, kindness, humility and good humor were matched only by his desire to bring a Super Bowl championship to the Lions and to our community. Each of us in the organization will continue to relentlessly pursue that goal in his honor."