Violaine
DLC
If you succeed his first step, it'll trigger the cultists event. She'll kill Balaam at the end of the game if you haven't the sigil, preventing your death.
Harem
Charlotte and Violaine Harem, DLC Princess Harem, All Princess Harem.
Story guide
Step 1:
First you have to see Violaine at the Cemetery before the 11th, if you don't, you will not be able to continue the story with Violaine.
You need at least 7 in Knowledge and 7 in Charm to succeed.
Be careful because you can't trigger it indefinetely.
Step 2:
You need at least 10 in Knowledge and Charm to succeed the event.
Go to the Cemetery in the afternoon.
Step 3:
You need at least 13 in prowess and knowledge to trigger the event.
Go to the Cemetery.
Step 4:
You need at least 16 in Knowledge and Charm to succeed the event.
Go to the Cemetery in the afternoon.
Step 5:
You need at least 21 in Prowess and Knowledgeto trigger the event.
Go to the Cemetery in the afternoon and accept the quest.
Step 6:
You need at least 26 in Prowess or Knowledge to trigger the event at the next feast.
You need at least 28 in Charm or Knowledge to succeed the event.
Step 7:
Go to the Cemetery in the afternoon to give her the Solar Protectus.
Step 8:
You need at least 30 in prowess and knowledge to trigger the event.
Go to the Cemetery in the afternoon and choose whatever you want.
(You can now marry Violaine)