Iziduko AmaMpovane 

Siwella. . . .one theory is that the big Clan was Khumalo. They grew and grew. Then the elders decided to divide. Some Khumalos had to move. The crossed the river. . .i e .bawela phesheya komlambo(,river). . . .From that one gets the Mlambo who are also Siwella. In the US some use double ll- Siwella. Also in southern Africa. some use Siwelah.
What’s in a name???