He was only a Dutch tailor's apprentice, but from 1534 to 1535, Jan van Leyden led a radical sect of persecuted Anabaptists to repeated triumphs over the combined powers of church and state. Revered by his followers as the new David, the charismatic young leader pronounced the northern German city of Muenster a new Zion and crowned himself king. He expropriated all private property, took sixteen wives (supposedly emulating the biblical patriarchs),...