Genealogy of Robert Dudley, Earl of Leicester, tracing his descent from the earls of Leicester and Chester, beginning with individuals of the 11th and 12th centuries, and providing the heraldic devices of the principal members of these families. Although the genealogy may have been compiled in association with Robert Dudley's appointment as lieutenant of the Order of the Garter in 1572 or the birth of his illegitimate son in 1574, Robert Dudley is mentioned in the introduction and is represented by the final coat of arms (f. 17v), although the lack of his name among those of his siblings is noted in a late 16th- or early 17th-century hand (f. 18r).