A German heiress's family fortune, high-society weddings, lavish divorces, and a bitter custody battle have combined into a saga resembling a Hollywood action thriller. The story involves hundreds of millions of euros in wealth, amassed on the backs of millions of cattle grilled by a German steakhouse chain, Germany's intelligence chief, divers, escape boats, courts in two countries overturning each other's rulings, a global Israeli security firm, several former Mossad operatives, and live blogs from Europe's most-read newspaper.