I am researching my great grandfather Antonio Lanzetta who was born in 1886 in Bella Potenza and my great great grandfather Angelo Lanzetta who was native to Bari(?). Angelo was a pyrotechnician and godfather to the modern day Grucci fireworks. Antonio may be an adopted son to Angelo from a previous marriage of his wife's. I am looking for information regarding the Lanzetta's of the Potenza region as they relate to my grandfathers. Any help would be much appreciated.