August Busch IV, the brewing heir who once vowed he would never sell his family's Budweiser and Michelob beer business, will pick up a multimillion-dollar pay package from the sale.

Busch, chief executive of Anheuser-Busch, is to receive almost $10.4 million (£5.6 million) when Belgium's InBev, maker of Stella Artois and Beck's, takes control of the American firm in the $52 billion deal.

The scion of the Busch family, which founded the brewing firm in St Louis, Missouri, before the US Civil War, will also be paid $120,000 a month as a consultant until 2013, according to a regulatory filing with the Securities and exchange Commission.

Busch is already eligible for up to $88 million in equity awards. His father, retired chief executive August Busch III, is in line for about $103 million.

The SeC filing adds that August Busch IV will be earning his monthly fee for advising the company on new products and business opportunities, and meeting retailers and advertisers. he will also be given personal security services for the next three years.

Anheuser-Busch's decision to sell to a foreign company has caused controversy because workers fear for their jobs. As part of its agreement with Anheuser-Busch, InBev has given an undertaking that it will not close any of the firm's 12 breweries in North America so long as state taxes are not increased.