That might cause a rethink. Thanks, Pie! South Africans often enjoy blended names, some of them rather odd, and since I only had the lady's death and not her place of birth I'd assumed she was a local. In which case Rose + Esme would have been top of the list. But her Italian connection - well, Mediterranean I suppose given the South Americans - opens up new avenues.
For some reason, South African census records are destroyed as soon as the number crunchers are finished with them, and it's no end of a mission to get BMD stats here, so this had better be put on ice until retirement!