Welcome to the Ricci Y-DNA genetic project! We invite all males with the Ricci surname from anywhere in the world, but also with the spelling variants: Riccio, Rizzi, Rizzo, Rizza, Lo Riccio, La Riccia, Lo Rizzo and La Rizza to join. This surname group is very frequent in Italy and we would like to discover: 1) how many different Y-DNA lineages bear these surnames and 2) if individuals bearing different variants of the Ricci surname share nevertheless a common ancestor!