The singer-songwriter and social activist best known as one-third of the folk-music group Peter, Paul and Mary, has died at age 86.

Peter Yarrow, a 5-time Grammy winner who co-founded the folk-pop trio Peter, Paul & Mary and co-wrote its hit "Puff the Magic Dragon," died January 7 at 86.

Peter Yarrow, one third of the chart-topping 1960s folk trio Peter, Paul and Mary — which helped popularize Bob Dylan as the voice of a generation — co-writer of the song “Puff, the Magic Dragon” and a prominent social activist,

The singer and songwriter who helped popularize folk music in the 1960s died of bladder cancer at his home in New York.

Peter Yarrow, one-third of the 1960s folk group Peter, Paul and Mary, died Tuesday in New York City. He was 86. Yarrow died at his home in the Upper West Side of Manhattan, The New York Times reported. His death was confirmed by his publicist, Ken Sunshine, according to the newspaper. Yarrow had been battling bladder cancer for the past four years.

American singer and songwriter Peter Yarrow, who found fame with the 1960s folk music trio Peter, Paul and Mary, died on Tuesday at the age of 86, his publicist said. Yarrow died in the morning at his New York home surrounded by family following a four-year battle with bladder cancer,