Ogrin Timeline and Summary

Ogrin meets Tristan and Yseut while they're in hiding in the forest of Morrois and urges them to repent of their adultery, promising God's forgiveness.
When Tristan and Yseut announce their repentance to Ogrin, he rejoices.
Ogrin counsels Tristan and Yseut to cover up the extent of their relationship and to ask Mark to take Yseut back.
He helps Tristan write a letter in which he claims never to have loved Yseut wrongfully and asks Mark to take them back.