1. Seal CXXXVI.91 Reference (shelfmark): Seal CXXXVI.91 Title: Scope & Content: William de Cusancia, Dean of St. Martin's, London, 1349. William de Cusancia, Dean of St Martin's, London: Seal: 1349, 1350. Collection Area: Western Manuscripts Languages: English Date Range: 1349-1350 Extent: 1 item