GALVANI / GALVAN - - Galvan is a Spanish name found in Ireland & Spain & Mexico and is derived from the Latin first name of "GALBAANUS," which is derived from the Roman name of GALBA, GALVANI, and GALVANO. It cognates to GAVIN.
The Spanish surname of "Galvan" is now considered Spanish and Irish.
The Galvan's came to Ireland from Spain due to the Spanish Armada shipwrecks on the west coast of Ireland in 1558. The Spanish Armada was returning from a battle with the British in the Irish Sea, and the surviving ships chose a route back to Spain that had them go around Northern Ireland, and then down the west coast of Ireland. The Spanish plan was to make a stop in Limerick, using the Shannon River to refuel and get food for their badly injured armies before heading back to Spain. The storms made the landings worse and many Spanish ships were lost.
The Spanish that did make it to shore were helped by the Irish, but if captured by the British, were murdered.