Previous Uefa president Lennart Johansson, who regulated the presentation of the Champions League, has passed on matured 89 following a short disease.
Johansson headed European football's overseeing body from 1990 to 2007 preceding being prevailing by Michel Platini.
He drove the change from the European Cup to the Champions League in 1992, with different sections from certain nations.
Johansson was crushed in the 1998 Fifa presidential decision by Sepp Blatter, losing by 111 votes to 80.
Swedish FA president Karl-Erik Nilsson said "no Swede has impacted football on the planet".
"Lennart Johansson was our greatest universal football pioneer ever," Nilsson said on Wednesday.
"He was profoundly regarded as Uefa president and VP of Fifa; his administration stimulated esteem around the world."
Fifa president Gianni Infantino discharged an announcement saying: "I am grief stricken by the updates on the passing endlessly of Lennart Johansson.
"He was a companion and an important wellspring of intelligence and motivation.
"I will be perpetually appreciative for having had him as the leader of Uefa when I joined the association in 2000.
"From that point forward, Lennart has dependably been a good example of polished skill and, all the more significantly, of mankind."
A snapshot of quietness will be held at the current week's Uefa diversions, including Wednesday and Thursday's Nations League semi-finals.