Talk:Sacred Oath (Dark Souls III)/@comment-31222592-20171206012121/@comment-31508382-20171213233046

Ornstein was also a dragonslayer. The first knight may probably refer to Havel, but it would be better to look for another answer as Gwyn exiled the firstborn.

It could also refer to not Gwyn, but his daughter Gwynevere (as Gwyn saw her as his sunlight). The firstborn of her is unlikely to be the candidate though, so Nameless, Ornstein and Havel are the current best candidates.