Juan Carlos became the first king of Spain in 44 years on the death of this man in 1975
[DOC] [TLE] Juan Carlos I - King - Biography.com [PAR] Aug 3, 2015 ... Biography.com examines Spanish King Juan Carlos I, who succeeded ... Juan 
Carlos became the king of Spain in 1975 and, after nearly 40 successful ... king of 
Spain, and he took the throne two days after Franco's death in 1975.