In the Time of Dying Stars, countless children warped by the black rain were slain after birth as monsters and hellspawn. A special one lived, to her dismay.
Half hour off the Harrow Road you find it, Fool's Grave. Amid an overgrown garden sits a single tombstone. Carved neatly into the weathered slab is the word "Fool," with a symbol underneath matching the signet ring you found.