Bernd Lucke, head of the Alter

Sounding more like the economics professor he once was than the dangerous far-right firebrand some say he has become, Bernd Lucke spoke at length about the perils of the euro zone and unfettered immigration at a campaign rally last week.

Some 400 conservative, grey-haired men had gathered in a basement of a Hamburg skyscraper on a stormy night to hear the Alternative for Germany (AfD) party founder, a 52-year-old father of five.