Surachai, or Kanisorn, Thanachart, 37, was convicted of many offences, including threatening his victim with guns in order to detain her.
The court also convicted Surachai’s 47-year-old common-law wife, Thanawan, or Deun, Udommeechai, for acting as his accomplice. She was sentenced to 10 years in prison.
Among the evidence used to convict the two defendants was a recorded conversation between Surachai and his victim.
Surachai has made headlines before for crimes including a physical assault against a former beauty queen and firing an assault rifle at a Bangkok police station. He served a jail term for a previous conviction.