Tewkes·bur·y 
(tksbĕr′ē, -bə-rē, -brē, tyks-)
(tksbĕr′ē, -bə-rē, -brē, tyks-) A borough of west-central England on the Severn River north-northeast of Gloucester. Yorkist forces defeated the Lancastrians here (1471) in a major battle of the Wars of the Roses.