Calaza origin goes like this: its a name of a child from Khumalo royal family like any other names that ended up being surnames like Nkosi, Siwela, Shembe, Jubane, Ndlangamandla, Mabaso, Mzazela, Nyawose, Mbulazi.
all those are Khumalo related surnames
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Zwelibanzi
Calaza is just a name of a child from a khumalo royal family like any other names that ended up being surnames like Nkosi ,Siwela,Shembe ,Jubane, Ndlangamandla,Mabaso, Mzazela Nyawose, Mbulazi. all those are khumalo related surnames