The 63-year-old Alexi Bizos, son of the late struggle stalwart George Bizos, was sentenced in the Johannesburg Magistrates Court on Friday for assaulting his wife.
Bizo's ex-wife, Monique van Oosterhout, approached Afriforum's private prosecution unit, which took on the case in 2018.
He was fined R100 000, or one-year imprisonment, and six months correctional supervision, which includes 20 hours a month of community service at shelters for abused women.
In the assault that took place nine years ago, Oosterhout broke six of her ribs.
Bizos was spared jail time due to his age and because he is a first-time offender.
Magistrate Tshepo Twala said Bizos showed no remorse and failed to acknowledge the wrongfulness of his actions, further stating that he was a poor witness.
The court found Van Oosterhout to be a good witness who painted a logical and clear picture of what happened.
The NPA initially declined to prosecute him, but after AfriForum announced in 2018 that the PPU had applied for a nolle prosequi certificate to prosecute Bizos, the NPA reversed its decision.
