The Brethren, by Robert Merle, who died at the age of 95 ten years ago, was originally published in 1977, the first in a sequence of historical novels that sold millions in their native France but have gone untranslated until now. Set in a plague-ridden, conflict-ravaged 16th century, rife with beheadings, hangings, abductions and rape, it’s a visceral yet strangely jaunty chronicle of provincial life after the Reformation.