Greg Lake
Birth Name: Gregory Stuart Lake
Date of Birth: 10 November, 1947
Place of Birth: Bournemouth, Dorset, England, U.K.
Date of Death: 7 December, 2016
Place of Death: London, England, U.K.
Ethnicity: English
Greg Lake was an English musician, singer, and songwriter. He was the lead singer, guitarist, bassist, and co-lyricist of progressive rock band Emerson, Lake, and Palmer (ELP). Other members of the band included Keith Emerson and Carl Palmer. He was also a founding member of the bands King Crimson and Emerson, Lake and Powell, which also included Emerson.
Greg was the son of Lily and Harry Lake, an engineer. He grew up in a poor family, in the suburb Oakdale. He learned guitar at twelve, and wrote his first song “Lucky Man.” He was married, and a had a daughter.
Greg’s paternal grandfather was Harry Earnest Lake (the son of Harry Lake and Emile Vere). Greg’s grandfather Harry was born in Poole, Dorset. Greg’s great-grandfather Harry was the son of John Lake and Ellen Janes.
Greg’s paternal grandmother was named Gertrude Annie Trim (the daughter of Robert Trim and Hannah Maria). Gertrude was born in Poole, Dorset. Robert was the son of James Trim and Mary.
Greg’s maternal grandfather was named Frederick Bruno Parsons. Frederick was born in Kensington, Middlesex.
Greg’s maternal grandmother was Flora Miles (the daughter of Alfred Harry Miles and Sarah Ann Ward). Flora was born in Stockbridge, Hampshire. Alfred was the son of John Miles and Elizabeth Anne Philpot.
Source: https://www.nytimes.com
Looks like he is fully English, but you guys can dive deeper if you want.
https://www.familysearch.org/tree/pedigree/landscape/GHPF-W5K