An American wealth management group, Tiedemann, and multi-family office Alvarium, have announced a merger. It creates a group overseeing US $54 billion in assets under management (AUM).

Under the deal, the two firms will combine with Cartesian Growth Corporation, a newly-created Nasdaq-listed blank cheque company.

The aim of the merger is to create an independent, global wealth and asset manager servicing entrepreneurs, multi-gen...