(Gerhard de Lange, Facebook)
Sylvester, who was nearly killed by wildlife officials after he escaped twice from the Addo National Park, is now a father.
De Lange of Kuzuko Lodge said in a statement Thursday that the cubs are "fit and healthy."
Sylvester was moved in 2016 to Addo after breakouts from Karoo National Park.
During the second, three-day escape, wildlife officials dropped plans to kill Sylvester after an outcry from people who said he should be captured and relocated.