Ansbacher specialises in high net worth clients and in Jersey carries out fund management and trust and company business.
Before the takeover it was part of the South African FirstRand Group.
Qatar National Bank was established in 1964 and is 50 per cent owned by the Qatari government, with the balance held by public shareholders.
It is the largest bank in Qatar with total assets of some $10 billion, controlling around 50 per cent of the assets in the country’s banking system.
The diplomatic relationship between Jersey and Qatar has come under strain in recent years in the light of a now-abandoned civil action relating to three Jersey trusts and allegations of multi-million pound bribes in the international arms industry.
The Qatari foreign minister, Sheikh Hamad bin Jassim bin Jabar Al Thani, was at the centre of that investigation.
Details of the investigation were made public only after the JEP successfully challenged reporting restrictions imposed on the case.
