CHIRBURY, (Salop) 1 m. N. E. of Montgomery, near the Severn, was, in the R. of Edw. III. the estate of Mortimer Earl of March; but, for want of issue-male in that family, passed to Rich. D. of Yorkshire, Here was a castle, supposed to have been built by AEthelfleda, a lady of the Mercians. Ever since the R. of Cha. I. it has given title of Baron to the family of Herbert; only, for want of issue, it lay dormant, from the R. of K. James II. till his present Majesty conferred it on Henry Arthur Herbert of Oakley-Park, now Earl of Powis, who has a seat here, Here was once a mon.