Alex is short for Alejandro. His boys are Alejandro (goes by Alex), Ivan and Pablo. Also Alejandro's family and friends call him Alex as he actually prefers Alex.None of his sons are called 'Alejandro', though, are they? (Or is 'Alex' short for 'Alejandro'?)
Just go to PCS, look up 'Alejandro Valverde', and... you might get a little surprise.
Ah, a little known rider from Costa Rica with the same name several years younger and very little racing.