Sir Anthony van Dyck was the principal painter at the court of King Charles I. The exhibition “Van Dyck and Britain,” running in London at the Tate Britain (Millbank, London; phone +44 20 7887 8888, www.tate.org.uk), Feb. 18-May 17, 2009, brings together many of his finest paintings. Admissions 10-5. €12.50 (€11.50 for 60+).