@RileyMaimunah (1986) - mother of Malu (2003) and Dewi (2010).
I assume Dewi has an in house name we’re not aware of - as is often done at Melbourne Zoo. If not, she’s the first great ape born at Zoos Victoria in decades to not have a name that follows the same initial as her mother:
Kamil - born 1990 to Kiani
Buzandi - born 1991 to Betsy
Bahasha - born 1994 to Betsy
Yakini - born 1999 to Yuska
Johari - born 2000 to Julia
Ganyeka - born 2000 to G-Ann
Malu - born 2003 to Maimunah
Kanzi - born 2015 to Kimya