2 brothers and 2 sister
Valerie Adams (former Vili) has several siblings, although it isn't defined how many. It is said that her father had 18 children with five different women (Source). Her brothers have also had some very notorious achievements - three of them have played basketball in professional level with one, Steven Adams, playing on the NBA.
3
12
15 medals
5
He had 11 brothers and sisters.
There are 4 brothers and 3 sister's all up. Assume your one of the brothers - hence you have 3 brothers and 3 sisters. However any one of your sisters, would have 4 brothers and 2 sisters.
There are three brothers and two sisters.
One sister, two brothers
Athena had no brothers or sisters.
2 brothers and sisters
he had no brothers or sisters