Talk:Drangleic Castle/@comment-107.196.241.85-20160822033942/@comment-4511886-20160822115707

Could be some failed invasion loop. It used to happen occasionally in Dark Souls, never heard of it in Dark Souls II, however. Other than that, you could try using an Ascetic at the "Under Castle Drangleic" bonfire, as that will respawn the Dragonriders.