(Bear in mind, of course, that equally cruel religious persecution of Catholics, Protestants, and Jews was quite common in Europe at that time. )
Religious persecution of Christians and Jews happened all the time in Europe.
The prize pieces of this stunning collection include Piero della Francesca's San Nicola da Tolentino, Mantegna's Madonna and Child, a Botticelli Madonna, and Antonio Pollaiuolo's lovely Portrait of a Young Woman.