Here are five pairs of uncles-and-nephews who played our great sport.
1. John Allan & Tommaso Allan
Italy international Tommaso Allan hails from a rugby family; his Scottish father William Allan and his Italian mother Paola Berlato both played in Italy, while his uncle John Allan earned 9 caps for Scotland and 13 for South Africa. The 25-year-old former Scotland U20 international has won 40 caps for the Azzurri, scoring 217 points.