Barclays boss Antony Jenkins said he was "shredding" the legacy left by his predecessor Bob Diamond as he confirmed bonuses will be slashed.
In a tense hearing with the Parliamentary Commission on Banking Standards, Jenkins told MPs he was taking action to address the "aggressive" and "self-serving" culture under Diamond.
He said the bonus pool for 2012 had already been "substantially" reduced following a scandal-hit year, in which the bank's reputation battered by the Libor rate-rigging affair.
The group is expected to reveal its 2012 bonus pool in the company's annual results next Tuesday.
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Butterflies and nerves of steel were behind the images shared and seen by millions across the globe.
The Duke and Duchess of Sussex thanked everyone who took part in the celebrations on Saturday, Kensington Palace said.
Established in 1913, the flower show has become one of the world’s biggest showcases for horticultural excellence.