Sentraille de Lushon
Sentrayle was one of Tristram’s knights.
After Tristram (Tristan) had escaped the judgement of Mark and Andred’s treachery, Mark’s seneschal, by leaping out of a chapel on the sea cliffs down to the rocks below, Sentrayle helped Gouvernail and Sir Lambegus pull him up again.
Sentrayle became a companion of the Round Table.
Source
Le Morte Darthur | Sir Thomas Malory, 1469-1470