Drax of Drax Hall by Paul Lashmar review - forensic expose of a British dynasty built on slavery / Nijmegen played a crucial role in maintaining slavery: study / Archaeologists unearth colonial-era status symbol, clues about slavery / 'A live issue': Hew Locke's new work referencing slavery displayed in London / David Lammy says his family links to slavery will inform political approach / A Love Story That Endured Through Slavery / Antoinette Sandbach: Ex-MP asks to be removed from slavery research