Max's middle name is a tribute to Murphy's older brother and fellow comedian Charlie Murphy, who died in 2017, reported usatoday.com.
"Both mother and son are doing well," Robinson said.
The "The Nutty Professor" star and Butcher began dating in 2012. Max is their second child. Their daughter, Izzy Oona Murphy, turned 2 this year.
Murphy's oldest child, Eric, is 29 years old.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)