Raest, Tchab, and Myrn
The triumvirate of head librarians at Rall Tamon
Not one character, but three. Each is a representative to the Library of Rall Tamon from one of the three major cities of Old Gilm. Tchab is a representative of Wystmere and a member of the Templars, Raest is a representative of Koll, and Myrn is a representative of Senis.
This arrangement of three representatives has been in place for a few centuries. Because the Library contains a lot of valuable, dangerous, and guarded knowledge, rather than Wystmere and Koll constantly fighting over who would control Senis and therefore the Library, a triumvirate was established with a representative of each city.