Green, considered by some as one of the best British blues guitarists of the 1960s, also composed hit songs like Albatross and Black Magic Woman ns co-founder of rock band Fleetwood Mac, has died at age of 73, according to a law firm acting on behalf of his family.

"It is with great sadness that the family of Peter Green announce his death this weekend, peacefully in his sleep," Swan Turton LLP, solicitors acting on behalf of his family, said in a statement.

The blues guitarist and singer-songwriter started the band alongside drummer Mick Fleetwood and bass guitarist John McVie in London in 1967. He left the group a few years later in 1969 after struggling with mental illness.

"For me, and every past and present member of Fleetwood Mac, losing Peter Green is monumental!" Mick Fleetwood said in a statement. "I will miss you, but rest easy your music lives on. I thank you for asking me to be your drummer all those years ago. We did good, and trail blazed one hell of a musical road for so many to enjoy."

Fleetwood had once told The Associated Press in 2017 that Green deserves most of the credit for the band’s success.

Peter was often asked why did he call the band Fleetwood Mac. He said, “Well, you know I thought maybe I’d move on at some point and I wanted Mick and John (McVie) to have a band.”

Divorced from Jane Samuels Green, Green is survived by their daughter, Rose Samuels-Greenbaum.

Tributes from other musicians poured forth soon after announcement of his demise on Saturday.