ived . ▁He ▁was ▁ 7 8 ▁years ▁old . ▁Blue ▁Dem on ▁was ▁buried ▁we aring ▁his ▁tra dem ark ▁blue ▁mask , ▁the ▁mask ▁he ▁never ▁removed ▁in ▁public ▁as ▁he ▁always ▁kept ▁his ▁true ▁identity ▁a ▁secret . ▁ ▁Leg acy ▁▁ ▁Blue ▁Dem on ▁is ▁considered ▁one ▁of ▁the ▁biggest ▁leg ends ▁of ▁l ucha ▁libre ▁second ▁only ▁to ▁El ▁Santo ▁in ▁terms ▁of ▁popular ity ▁and ▁influence ▁both ▁in ▁and ▁outside ▁of ▁Mexico . ▁The ▁distinct ive ▁blue ▁and ▁silver ▁mask ▁of ▁Blue ▁Dem on ▁and ▁Blue ▁Dem on ▁Jr . ▁is ▁known ▁world wide ▁and ▁is ▁an ▁instantly ▁recogn izable ▁symbol ▁of ▁L ucha ▁Lib re . ▁On ▁Wikipedia , ▁The ▁mask ▁icon ▁is ▁used ▁as ▁part ▁of ▁some ▁professional ▁wrest ling ▁related ▁tags ▁and ▁not ices . ▁ ▁On ▁October ▁ 2 7 , ▁ 2 0 0 0 , ▁C ML L ▁held ▁their ▁first ▁ever ▁Ley enda ▁de ▁Az ul ▁(" The ▁Blue ▁Leg end ") ▁tournament ▁in ▁honor ▁of ▁Blue ▁Dem on . ▁The ▁winner ▁of ▁the ▁tournament ▁receives ▁a ▁championship ▁bel t ▁that ▁features ▁Blue ▁Dem on ▁as ▁well ▁as ▁a ▁pla que ▁with ▁a ▁Blue ▁Dem on ▁mask ▁on ▁it . ▁The ▁tournament ▁has ▁been ▁held ▁on ▁a ▁semi - regular ▁basis ▁ever ▁since , ▁The ▁tournament ▁was ▁first ▁end ors ed ▁by ▁Blue ▁Dem on ▁Jr ., ▁and ▁later ▁end ors ed ▁by ▁Mu ñ oz ' ▁son . ▁Alfred o ▁Mu ñ oz , ▁after ▁Blue ▁Dem on ▁Jr