Rory, I think you're right - he was re-interred in Heidelberg, one suggestion I have read is that he lived there before the war.
Here's an account of his death, by gunshot, sabre and lance:
"According to witnesses he had received a shot to the head and barely conscious also received a wound when cut by a sabre and stabbed with a lance by the cavalry of the enemy. He survived the night and only died the next day."
The past is not dead. In fact, it's not even past.
I'm not sure why, but Graf Zeppelin's name appears on the Heidelberg Commando memorial .....
Ian Uys mentions the re-interment in his book "Heidelbergers of the Boer War", p. 9, stating that Zeppelin was reburied in the Heidelberg Commando memorial plot. No reason is given for this.
Perplexingly, Uys's index points to the page dealing with the re-interment of eight Heidelbergers that took place on 17 Oct 1903. However, Zeppelin's name is nowhere to be found on that page (p. 234).
The wording on the memorial certainly seems to imply that Zeppelin was one of those reburied on 17 Oct 1903.
Generals Louis Botha, C.R. de Wet, Jan Smuts, J. Kemp, C.H. Muller, P.R. Viljoen, A.H. Alberts and C. Brits were all present at the ceremony.
One of the men, Vdk. Van As, was executed by the British three weeks after the end of hostilities, on 23 June 1902. A few years after the war Van As's father received a letter from the British Government admitting that the conviction of his son had been a miscarriage of justice. The family was therefore able to claim compensation. Van As's father declined to take advantage this offer.
TOT BLYWENDE NAGEDAGTTENIS VAN
GENL. CORNELIS JOHANNES SPRUYT,
KOMDT. JOHAN CHRISTIAN KRIEGLER,
VELDK. SALOMON J. VAN AS,
JOHANNES ADAM SPRUYT,
HARRA VON ZEPPELIN,
DIE TWEEDE VRYHEIDSOORLOG
VIR VADERLAND EN VRYHEID
AFGELÊ HET EN ALHIER OP 17 OKT. 1903 HERBEGRAWE IS
STEFANUS JOHANNES BRONKHORST,
ELDERS IN DIE KERKHOF BEGRAWE.
JULLE HET DEUR ONTBERING EN LYDING,
JULLE VOLK TOT DIE DOOD TOE GEDIEN;
GOD HET JULLE OFFERS VAN WYDING,
JULLE ROEMRYKE STERWE GESIEN.
OPGERIG DEUR DIE
MET MEDEWERKING VAN DIE