Secret was the deposit, in 1961 of an ex-voto, addressed by Yves Klein to Saint Rita, at the monastery of Cascia where the relic of his body is preserved. This ex-voto was rediscovered fortuitously, several years after the death of the artist, which occurred in 1962. The damage caused by the 1979 earthquake had made a restoration necessary. The painter responsible for making it needed gold. The sisters of the convent brought him the box deposited anonymously and preserved with the other offerings. He recognized there a work of Yves Klein. It was authenticated in 1980 by Pierre Restany and Daniel Moquay who went there.