Spains king felipe vi renounces his inheritance from his father
I think there may be some confusion here!
King Felipe VI of Spain has not renounced his inheritance from his father, King Juan Carlos I. In fact, King Felipe VI is the current monarch of Spain and has been since 2014, following the abdication of his father.
It's possible that you may be thinking of a different royal family or individual. Could you provide more context or clarify what you mean by "renounces his inheritance"?