The Holy Chamber in the Catedral (Cathedral) of Oviedo...

There was good money to be made hawking relics to the gullible.

Oviedo also lays claim to (one of) the holy foreskin(s), various fragments of the Cross and a variety of other relics that were moved North ahead of the Moorish advance and aggregated in Oviedo. The explanatory guides in the Camara Santa were very good if your Spanish (and medieval Latin) are up to scratch.

When we visited the Camara Santa, I got the impression that a lot of the, um, odder items had been destroyed when the leftist terrorist blew up the saint's chapel below and seriously damaged the Camara Santa in 1930-ish. The photo at the top of the thread doesn't resemble the chamber as it is today.
The Cross of Victory had gems added, to honor it, later. There's a wooden one underneath all the sparklies. (This is separate from the other precious-metal cross on the other side.)
Rather like the very sparkly 10-inch or so cross in the Diocesan Museum in Astorga. If you look v-e-r-y closely there are a couple of plain wooden splinters in between all the gold and gem encrustations. These are the reason for all the gems.
The Camara Santa has a kneeler there for pilgrims to use. Otherwise the visitors' side of the room is pretty much bare. All of the remaining relics and treasures of the room are on the far side of a viewing window. At least that's how I remember it.