Tradition tells us that King Bimbisara was imprisoned by his son
Ajatashatru who is said to have starved him to death. This is reported to
have taken place around 491 BC
(http://en.wikipedia.org)
About King Bimbisara
http://en.wikipedia.org/wiki/Bimbisara
Bimbisara Jail Google Map
http://wikimapia.org/8253542/Bimbisara-Jail
About Rajgir (Rajagaha)
http://en.wikipedia.org/wiki/Rajagaha
About Sotapanna (first stage of enlightenment)
http://en.wikipedia.org/wiki/Sotapanna
Four stages of Enlightenment
http://en.wikipedia.org/wiki/Four_stages_of_enlightenment