Earlier quoted context omitted.
That's common but sometimes the cause is not what you would think. In Spain there are many people with foreign or uncommon names... that are also biblical names. Abraham, Sarah, Aaron, Jonathan or Josuah ( Josué ) were unheard half a century ago. Now they're usual. Why? In part, because Evangelical missionaries were more successful in poor quarters, specially among gypsies. Also there's the famous actors thing. But n…
Probably these names were actually prohibited half a century ago, when only the (Castilian Spanish) names of Catholic saints were allowed
Actually not even foreign names. IIRC only names that were insulting or prone to be laughed at were forbidden.