It was headed by Thomas Pelham-Holles, 1st Duke of Newcastle, serving in his second stint as prime minister.
The ministry ended a period of political instability in which Great Britain had struggled in the war.
Pitt was a strong war leader but lacked the support in Parliament necessary to provide effective leadership.
They divided duties between each other; Pitt directed the defence and foreign policies, while Newcastle controlled the nation's finances and patronage.
Bute, a Tory, was made Northern Secretary in March 1761, and following Pitt's resignation, the ministry is otherwise referred to as the Bute–Newcastle coalition.