Former Nyakach MP Dennis Akumu had died aged 82.
Akumu died at 2am on Thursday while undergoing treatment at Aga Khan Hospital in Nairobi.
He served his first term as a KANU MP, and later vied successfully under the Ford Kenya party ticket.
Akumu served as an MP for two terms, between 1969 to 1973 and later 1992 to 1997.
He served as COTU secretary general from1969 through 1975 and was the founder Secretary General of the Organisation of African Trade Union Unity, OATUU based in Accra.
Cotu secretary general Francis Atwoli eulogised Akumu terming him as a devoted unionist.
“Akumu was a polished and trained negotiator whose service as a trade union leader to the Kenyan workers and Africa as whole will forever remain in the annals of our history as a leader who served with zeal and commitment devoid of any compromise nor sway,” Atwoli said.
He was a founder member of the Kenya People’s Union Party which was led by the late Jaramogi Oginga Odinga.
Atwoli said funeral and burial arrangements will be announced later by his family and Cotu.