▁ 1 6 5 0 ; ▁the ▁aut os ▁sacr ament ales ▁The ▁Se iz ure ▁of ▁Pro ser pine ▁and ▁the ▁Dream ▁of ▁End ym ion ▁( El ▁ro bo ▁de ▁Pro ser p ina ▁y ▁sue ño ▁de ▁End im ión ) ▁and ▁The ▁Pro dig al ▁Son ▁( El ▁hijo ▁pr ódigo ) ▁had ▁also ▁been ▁written ▁c . 1 6 5 0 ▁and ▁c . 1 6 5 7 ▁respectively . ▁ ▁From ▁ 1 6 6 4 ▁to ▁ 1 6 8 0 , ▁Juan ▁de ▁Esp in osa ▁Med rano ▁continues ▁writing ▁pan egy ric ▁ser m ons ▁to ▁be ▁pre ached ▁in ▁diverse ▁religious ▁prec inct s ▁of ▁C uz co . ▁Among ▁the ▁most ▁important ▁are ▁the ▁" S erm on ▁for ▁the ▁Fun eral ▁of ▁Philip ▁IV " ▁(" S erm ón ▁a ▁las ▁Ex equ ias ▁de ▁F eli pe ▁IV ") ▁in ▁ 1 6 6 6 ▁and ▁the ▁" Pan egy ric ▁P ray er ▁to ▁the ▁Im mac ulate ▁Con ception ▁of ▁Our ▁Lady " ▁(" O ra ción ▁Pan eg ír ica ▁a ▁la ▁Con cep ción ▁de ▁Nu estra ▁Se ñ ora ") ▁in ▁ 1 6 7 0 . ▁Esp in osa ▁Med rano ▁further ▁advanced ▁in ▁his ▁ecc les iast ical ▁career ▁by ▁acting ▁as ▁priest ▁of ▁Julia ca ▁from ▁ 1 6 6 0 ▁to ▁ 1 6 6 8 . ▁That ▁year ▁a ▁min ers ▁u pr ising ▁takes ▁places ▁in ▁the ▁town ▁of