Ekweremadu his wife and their “middleman” have been jailed for an organ-trafficking plot, after bringing a man to the UK from Lagos.
Senator Ike Ekweremadu, 60, and his wife Beatrice, 56, wanted the organ for their 25-year-old daughter Sonia.
The pair and Dr Obinna Obeta, 50, were convicted previously of conspiring to exploit the man for his kidney.
It is said to be the first such case under modern slavery laws.
Ike Ekweremadu, who was described by the judge as the “driving force throughout”, was sentenced to nine years and eight months in prison.
Dr Obeta was sentenced to 10 years after the judge found he had targeted the potential donor who was young, poor and vulnerable.
Beatrice Ekweremadu was jailed for four years and six months due to her more limited involvement.
The 21-year-old said he only realised what was planned when he met doctors at the Royal Free Hospital in London who began discussing a kidney transplant.
He told the court he would not had have agreed to it, adding: “My body is not for sale.”
The victim is now being helped by a charity in the UK, according to his lawyer in Nigeria.
In his statement he said he “can’t think about going home to Nigeria”, as “these people are extremely powerful and I worry for my safety”.
He also refused to apply for financial compensation from the Ekweremadu family, telling a detective he “did not need or want anything from the bad people”.
Hugh Davies KC prosecuting said all three defendants were guilty of trafficking with the highest level of culpability. BBC