For Temeria!

Walkthrough
Go to the audience with King Radovid.

If Roche killed Henselt, there will be a persuasion option to hide this fact from Radovid - as well as the use of necromancy by Dethmold while divining the location of assassins' hide out. Using persuasion or telling the truth does not seem to affect the outcome. Radovid asks to save Anais and send her to Redania.