Kitui West MP Francis Nyenze passed on after battling cancer of the colon for a long time.
He has been ailing since 2008, seeking treatment in Kenya and abroad. He had been admitted for almost a month at Nairobi Hospital where he died. According to Kitui Senator Enock Wambua, burial preparations will kick off anytime soon.
Nyenze leaves behind a widow and three children.
The body has been moved to Lee Funeral Home in Nairobi.
On August 31, Mr Nyenze carried an oxygen tank into the National Assembly for his swearing-in.
He arrived at about 10am, with the tank strapped on the torso and the tubes snaking up his back.
He looked frail and was limping but put on a brave face and greeted the battery of journalists at the entrance.
He said: “How are you are friends…mimi pia nimefika (I’ve also made it) for the swearing-in.”
He hugged and cheerfully greeted his colleagues inside and took the oath.
Born on June 2, 1957, Mr Nyenze was a close ally of Wiper party leader Kalonzo Musyoka.