Hi, Im Xico Gracida and Im also interested to know the origins of the name Gracida.
What I know is that Gracida´s arrived to México by Veracruz in 1500 and then they went to Ejutla, Oaxaca.
My father is from San Luis, a town in Guerrero near to Oaxaca, the history says that my grandfather arrived there with other 3 brothers from Oax.
Back in time, Gracida´s were sefardies jews expulsed from Spain, and then they stablished in Italy, were the name change to GRAZZIDA OR GRAZIDA.