Five members of the same family have all been jailed by a judge at Bristol Crown Court for conspiracy to require a person to perform forced or compulsory labour.
William Connors, 52, has been jailed for six and a half years and his wife Mary, 48, received a sentence of two years and three months.
The couple's son, John, 29, was jailed for four years. Their other son James, 20, got three years detention in a young offender institution.
Son-in-law Miles Connors, 24, received a three year prison sentence.