He was born in Rome on 5 January 1938 , where his family was living in exile after proclamation of the Second Spanish Republic .
Juan Carlos reigned as the King of Spain from 1975 until his abdication in 2014 .
Juan Carlos was born in Rome on 5 January 1938 , where Juan Carlos ' family was living in exile after proclamation of the Second Spanish Republic .
Juan Carlos reigned as the King of Spain from 1975 until his abdication in 2014 .