King Arthur

Source: Historia Regum Britanniae
"Arthur was born at Tintagel Castle; transported to Avalon after being wounded in the battle of Camlann(Cornwall)"
http://dl.dropbox.com/u/12607909/TimeLines/KingArthur/1135_Geoffrey_of_Monmouth.jpg

Links:
Geoffrey of Monmouth
Historia Regum Britanniae

Source: Roman de Brut
Wace introduced the Round Table
http://dl.dropbox.com/u/12607909/TimeLines/KingArthur/1155_Wace_Roman_de_Brut.jpg

Links:
Wace
Roman de Brut

Source: Erec and Enide
De Troyes Introduced the medievel notions of chivalry and courtly romance.
He created many knights(Sir Lancelot) but also the court of Arthur: Camelot
http://dl.dropbox.com/u/12607909/TimeLines/KingArthur/1170_Chretien_De_Troyes.jpg

Links:
Chrétien de Troyes
Erec and Enide

Source: the Grail story Joseph d'Arimathe
De Boron introduced the Holy Grail

Links:
Robert de Boron
the Grail story Joseph d'Arimathe