Major General Senen Casas Regueiro (30 July 1934 in Bombi - 6 August 1996) was a Cuban politician. He was the Cuban Minister of Transportation from 1989 till his death. He was also the First Deputy Minister of Defence and the Chief of Staff of the Cuban Army. He was a brother of another Cuban politician Julio Casas Regueiro.

Can we draw the following conclusion?
Major General Senen Casas Regueiro had a sister.
It's impossible to say