Brother Methuselah, sometimes known as Old Methuselah, was a bespectacled wise old mouse, and Gatekeeper at Redwall Abbey. He was a scholar, well-known for Abbey record-keeping and chronicling, and spent most of his time alone. He was also known for being able to understand almost any creature, as he had the gift of tongues. He was said to be the oldest mouse ever to live in Redwall Abbey. When the Joseph Bell was recast into a set of twin bells, one of them was named after him. Also, Mattimeo's full name was Matthias Methuselah Mortimer, another tribute to the memory of him.