German artist and art collector. In the wake of the French occupation and the closure of many churches, he undertook, in conjunction with his brother and Johann Baptist Bertram, the formation of a collection of pictures by early German and Netherlandish painters, to which the three devoted twenty years' labour and the bulk of their fortunes. Boisserée was the inventor of a new and simple method of painting on glass by means of the brush alone, and employed it for the reproduction of the best works in his collection, and of some chefs-d'oeuvre of the Italian school which are now at Bonn.
