Tu·dor1 / ˈt(y)oōdər/ • adj. of or relating to the English royal dynasty that held the throne from the accession of Henry VII in 1485 until the death of Elizabeth I in 1603. ∎ of, denoting, or relating to the prevalent architectural style of the Tudor period, characterized esp. by half-timbering.• n. a member of this dynasty.Tu·dor 2 , Henry, Henry VII of England (see Henry1 ). Tu·dor 3 , Mary, Mary I of England (see Mary2 ).