He had served the firm for more than nine years and was responsible for Close International’s product and proposition development and marketing across pensions, asset management, trusts, banking, custody and fund administration. Cowley worked out of its Jersey office.

He was based in the company’s Jersey office. Cowley was credited with bringing a number of retirement products to the market including qualifying recognised overseas pension schemes and the Close All Weather Fund in 2003.

In June, Kleinwort Benson purchased Close Offshore Group for £26.4 million (around $43.4 million) increasing the size of its private wealth assets under management by £1.6 billion.

As previously reported, Kleinwort Benson appointed Danny Vogt as chief operating officer - a newly-created standalone role - and John Boyce as chief technology officer.