Well,You have got a point there. But FYKI, I grew up with those anthropologists who were invloved in the extraction of Tilaurakot. I spent my winter vacation with the historians involved in it.I know each corner and stones of Tilaurakot & Lumbini. Be it the Kotia Devi out there or the small well used privately by Mayadevi. Instead of reading Tintin I spent my childhood reading all those stuffs. May be the word Kingdom was not exactly correct, I am talking about the small zamindars. I am telling you about the stuffs that was there ( some 100 years ago).I am just pointing out one of the possibilities.You must be knowing that Tilaurakot was not that big(the area where Suddhodhan ruled) , though it is often mentioned as kingdom. And one funny incident I would like to share here. Couple of years ago in Nepal, I met a RajShakya guy in Thamel, who thinks he is the reincarnation of Buddha, no wonder, then he was just out of one of the rehab.Later I found that some families of Shakyas are really into these reincarnation stuff.That was really absurd.