Former Bayern Munich coach Udo Lattek died on Sunday at age 80, the club announced.
Lattek had been battling Parkinson's disease and dementia in recent years, but the club did not give the cause of death in its announcement.
Lattek coached Bayern during two stints in the 1970s and 1980s, winning six Bundesliga titles. He was also part of West Germany's coaching staff during its run to the 1966 World Cup final.
Bayern Munich chairman Karl-Heinz Rummenigge released a statement about Lattek's death.
"The news of the death of Udo Lattek has deeply moved us," he said in a statement. "His name is so closely associated with the rise of Bayern Munich in the successful 1970s.
"For decades he has been one of the great personalities of football - nationally and internationally. With him we lose one of the great men of FC Bayern - a personal friend of the club and myself."
Bayern Munich legend Franz Beckenbauer remembered his former manager on Twitter.
Lattek won the Bundesliga twice while coaching Borussia Monchengladbach and won a pair of titles at Barcelona.
Following time at Cologne and Schalke, Lattek's last job came as co-coach of Borussia Dortmund in 2000. After his coaching career, he was a television analyst.
- Paul Palladino