▁García ▁decided ▁to ▁build ▁a ▁monaster y ▁near ▁the ▁cave , ▁which ▁became ▁Santa ▁María ▁la ▁Real ▁of ▁N áj era , ▁and ▁at ▁the ▁same ▁time ▁create ▁the ▁Or den ▁de ▁la ▁Terra za , ▁the ▁latter ▁being ▁an ▁arch a ic ▁word ▁for ▁jar . ▁ ▁The ▁ 1 9 th - century ▁historian ▁Vic ente ▁de ▁la ▁Fu ente ▁believed ▁the ▁order ▁could ▁be ▁trac ed ▁back ▁to ▁San cho ▁VII ' s ▁reform ▁of ▁an ▁Order ▁of ▁the ▁Lil ies ▁( Or den ▁de ▁los ▁Li rios ) ▁in ▁ 1 2 2 3 . ▁ ▁Foundation ▁On ▁ 1 5 ▁August ▁ 1 4 0 3 , ▁while ▁celebr ating ▁the ▁Fe ast ▁of ▁the ▁Ann unci ation ▁in ▁Med ina ▁del ▁Cam po , ▁Ferdinand ▁con ferred ▁the ▁col lar ▁of ▁a ▁new ▁order ▁of ▁ch ival ry ▁on ▁his ▁sons ▁Alfonso , ▁John , ▁Henry , ▁San cho ▁and ▁Peter . ▁ ▁The ▁device ▁of ▁the ▁order ▁was ▁a ▁chain ▁bearing ▁a ▁jar ▁of ▁l il ies , ▁symbol izing ▁the ▁pur ity ▁of ▁the ▁Virgin , ▁which ▁was ▁already ▁a ▁common ▁symbol ▁of ▁the ▁Ann unci ation ; ▁an ▁eff ig y ▁of ▁Virgin ▁and ▁Christ ▁child ; ▁and ▁a ▁gr iff in , ▁which ▁should ▁probably ▁be ▁read ▁as ▁symbol ▁of ▁war ▁against ▁the ▁inf idel . ▁M embers ▁also ▁wore ▁a ▁white ▁st ole . ▁The ▁stat utes ▁of ▁the ▁order ▁appear ▁to ▁have ▁been ▁given ▁on ▁the ▁occasion ▁of ▁its ▁found ing