This year marks the 450th anniversary of the Capture of Brielle by the Watergeuzen (lit. ‘Sea Beggars’) and therefore the birth of the Netherlands. Student Johan Visser is contributing to no fewer than three books about the extraordinary year of 1572.

Raymond Fagel, university lecturer in General History, wrote a book about his research on Spanish commander Mondragón. He spared Zierikzee during the Eighty Years’ War and is considered to be ‘the good Spaniard’. What led Fagel to research this topic? And how does such research work? We asked him: