Mererid is a Emhyr's chamberlain who, with a little help from Cledwyn the Barber, prepares Geralt of Rivia for audience with the Emperor of Nilfgaard in the Royal Palace in Vizima. Spoiler warning: Significant plot details follow.Also if Ciri became a witcheress, he will lead Geralt once more to Emhyr, where he will lie to him about her death. Significant plot details end here.