Fairport Convention is a British folk-rock band that formed in 1967. One of the founding members is Richard Thompson, one of my favorite singer-songwriters.
'Liege and Lief' is their third album, released in 1969. It is also their last album to feature Sandy Denny, a woman whose life was destroyed by her demons. In spite of those demons, her singing is a joy to listen to here.
The full album can be found here and here.