Proscriber

In a period of quiet, he had acquired the name of a man of worth; in darker days, he left the renown of a pitiless proscriber.

“In principle,” he declared, “proscription is not only a crime, but a fault; history is full of instances, showing how proscribers have in their turn been forced into the ranks of the proscribed."

I made no connection to the fact that the other proscribers of books were Hitler and the Catholic Church.