The ancient site of Kapilavastu ( 27026’30’’ N; 83007’50’’E) is located about twenty two kilometers north of Naugarh, the headquarter of the district Siddharthnagar in Uttar Pradesh.
Kapilavastu, is frequently mentioned in Buddhist literature as a glorious town, apparently being Buddha's native town and the capital of his father Suddhodan, the Chief of Sakya clan, who were priestly-warriors, wealthy knights and land owners. Kapilavastu was located between the Nepalese foothills and the river Rapti, in the present day district of Siddharth Nagar. The kingdom of Kapilavastu was extended to the Himalayas in the north, the Rohini river in the east, Rapti river to the west and south.
Politically, the Sakyas most probably owed allegiance to Prasenjit, the King of Kosala during the 6th century B.C. Kapilavastu is said to have been destroyed even during Buddha's lifetime by King Vidudabha, son of Prasenjit who ruthlessly massacred Sakyas as revenge. However, it seems that the Sakyas had never been extinct from the land because they had received share of body–relics of Buddha, but it is very likely that the tribe never flourished afterwards. It is also attested from Fa-Hien's description who found during his visit in the 4th Century AD, it like a desert with neither king nor people except for a congregation of priests and about ten families of lay people. In the year 7th Century AD the other Chinese traveler Hiuen Tsang also visited the site and mentioned it in his travelling accounts.