Obtain the "Crown Of The Sunken King", "Crown Of The Old Iron King", and "Crown Of The Ivory King" from their respective DLCs. Then, enter the Memory Of The King, using the following steps. Open the gates at the Shrine Of Winter, and enter Drangleic Castle. Uncover the hollowed King Vendrick in the Undead Crypt, get the King's Ring, and enter Aldia's Keep. Reach the Ancient Dragon, and obtain the Ashen Mist Heart. Interact with King Vendrick's armor in the chamber at the end of the Undead Crypt to enter the Memory Of The King. Talk to King Vendrick, and for each DLC crown obtained, there will be a specific dialog. If all three have been obtained, each of the crowns will be given a new effect after a short cutscene. While equipped, death no longer results in a hollow, and you cannot be cursed. If you have also defeated King Vendrick and obtained the King's Crown along with the three DLC crowns, it will be upgraded to a new version, named the "True King's Crown".