One of the driving forces behind Lazard's growth in Europe, who racked up over $100bn (€67.4bn) in advisory mandates before returning to the US less than a year ago, has been handed responsibility of the bank's investment banking business globally in today's management reshuffle.

The promotion of Antonio Weiss is part of a broader reshuffle at the top tier of Lazard following the death of Bruce Wasserstein last month.