That is interesting to know. Lazalde is not a popular name. My grandfather Luis Lazalde-Castro(deceased)b. 1899 is from Valparaiso, Zacatecas. His father Luis Lazalde was a silver miner and his place of birth is unknown to me. I will research Sain Alto, Zacatecas. I definately know we are of Spanish descent. I think my grandfather may have also been born of an indigenous women and raised by his Spanish mother who was from SanFrancisco, CA while it was still under Spanish rule. Not sure.