Santos P. Amadeo Politician
Santos Primo Amadeo Semidey (June 9, 1902 – August 25, 1980), a.k.a. "Champion of Hábeas Corpus," was an attorney and law professor at the University of Puerto Rico, a Senator in the Puerto Rico legislature, and counsel to the American Civil Liberties Union branch in Puerto Rico, established in 1937.He founded the Phi Sigma Alpha fraternity in Puerto Rico.