The cause was cancer, said the Mexican government news agency Notimex.
In his career Armendáriz acted in at least 22 telenovelas most recently "LA FUERZA DEL DESTINO", ATREVETA A SONAR and DESTILANDO AMOR AS.
He appeared in more than 100 films, including The Crime of Father Amaro, which became the biggest box-office hit in the history of Mexican film when it was released in 2002.