In 1594 William Stanley, 6th Earl of Derby (1561-1642), following the death of his elder brother the 5th Earl of Derby, incorrectly assumed the title Baron Strange (created in 1299) (see above). In 1628 his son and heir apparent, James Stanley, 7th Earl of Derby, was summoned to the House of Lords through a writ of acceleration as "Lord Strange". When it was discovered that his father's assumption of the barony was erroneous, it was deemed that there were two baronies of Strange, one created in 1299 then in abeyance, and another created "accidentally" in 1628. James Stanley later succeeded his father as 7th Earl of Derby.