Thanks very much for the clarification Delia. I copied and saved the baptismal detail from eGGSA some time ago, had not considered it may get updated - it sure has. I will be mindful to check for such in future, thanks.
I see unfortunately it does not mention in the 1672 baptism that Cornelia's mother Dorothe was from Angola as it does in the 1675 baptism of Cecilia. It's a piity, since that would have made it clear that this is indeed the same Dorothe. I always worry about saying someone is definitely the same person as someone else, just because names are similar. This is not always correct.
Did you find this particular Dorothe who was Cornelia's mother mentioned as being from Angola in any other document or is it assumed she is the same person who baptised Cecilia in 1675??
I am not involved with a Maria Jacobs, but Cornelia Jacobs, the mother of Maria Petronella Langeveld. I see her correct web page reference is http://www.e-family.co.za/ffy/g8/p8127.htm - you say she is the same Cornelia whose baptism took place on 27 March 1672 - as discussed above.
Re her multiple aliases - you say this particular Cornelia van die Kaap baptised 27/3/1672 was also called Keetje van die Kaap, Cornelia Pietersz and Cornelia Jacobs. I accept you have spent some time coming to this decision, so will appreciate if you can explain in a bit more detail. How can you be sure these are all one and the same person and not multiple people?
What evidence exists that this Cornelia baptised 27/3/1672 was indeed the mother of Maria Petronella Langeveld born 1719 - when this Cornelia was already close to 50 years old then??? It seems so unlikely to me...?? I am very keen to know what evidence links this particular Cornelia baptised 1772 to being Maria Petronella Langeveld's mother.
I see you link her to a partner called Pieter Jacobsz b 1700. Is this Pieter Jacobsz Langeveld (the children carrying the Langeveld surname)? According to SAG their father was likely Pieter Pietersz Langeveld and their mother Cormelia Jacobs, but I have not yet found any documentation re this Jacobs-Langeveld union. So will be happy to learn more about your link to Pieter Jacobsz.