I live in Colombia, South America, all I know about my family name is that my grandfather came to Colombia after General Franco took power in the 1930's. His name was Jose María Tena, he was a well-known musician. He was married to Isabel Blanca with whom he had 6 children. Jose María, Cesar, Pilar, Blanca, Alvaro and Jorge. He came to Colombia from Madrid. He seems to have been member of one of the political parties opposing Franco.
I will appreciate any help that anyone could give.