According to Boyd's Marriage Index, 1538-1840, they were married in the London Diocese by the bishop.
London, England, Extracted Parish Records. Text: 01 Nov 1598 Sir John Packington, Kt, about 44, now resident at house of Mr Seabright, Town Clerk of London, in St Edmund's in Lombard Street, & Mrs Dorothy Barnam, about 30, widow of Mr Benedick Barnam, Alderman of London, decd; at St Leonard's, Bromley; alleged by Mr Thomas Wilford, Chamberlain of London. Book: Burials. Collection: London: - Marriage Licences, 1520-1610 (Marriage).