In the last decade there seems to have been a run of siblings such as the Barretts, Whitelocks, Franks and Saveas and before them, the Meads, Whettons, Brownlies and Bachops.
The Barrett brothers became the first trio of brothers to appear for the All Blacks in a World Cup match after they were named to start for the three-times world champions against Canada in Oita, Japan.
What is it like for these siblings?
Jamie Wall has put together a great read of fascinating stories and analysis while sharing plenty of yarns about high-profile tests.
Come along dressed as "Brothers or Sisters in Black" and go in the draw to win a signed copy of his book.
Saturday 16 November
No charge, everyone welcome!