The news that the bankers Rothschild are to withdraw from the gold market, in which they have been a major player for two centuries, has been hailed as the end of an era. In one sense, of course, it is. But in another way it marks out the continuation of an even older tradition - the ability of the family which has founded one of the world's largest private banking dynasties to sustain their secretive fortune, which industry insiders count not in billions but in trillions, and keep it within the family. Secrecy has been a hallmark of the Rothschilds from the outset. The Rothschilds created the world of banking as we know it today. [They] invented, or at any rate popularised, the government bond, which allowed investors, big and small, to buy bits of the debts of sovereign states by purchasing fixed-interest bearer bonds. It brought investment in railways, the industrial revolution and ventures like the Suez Canal. The Rothschilds got a cut of everything. They made billions in the 1980s from Margaret Thatcher's privatisations of state-owned industries on which they advised. In France after their bank was nationalised by the Socialist president Francois Mitterrand they slowly built a new business which, under Baron David de Rothschild, has risen to the top ranks of the merger and acquisition league tables. They have pulled out of retail fund management - into which they went with much fanfare only three years back - and now they are pulling out of oil and gold in favour of the higher-margin areas of private banking and wealth management