Davis ministry

The Davis ministry was the combined cabinet that governed Ontario from March 1, 1971, to February 8, 1985. It was the longest-lived ministry of Ontario in the 20th century.
It was led by the 18th Premier of Ontario, Bill Davis. The ministry was made up of members of the Progressive Conservative Party of Ontario, which commanded at first a majority, and then a minority, before returning at last to majority status in the Legislative Assembly of Ontario.
The ministry replaced the Robarts ministry following the resignation of Premier John Robarts and the 1971 PC leadership convention. The Davis ministry governed through the last few months of the 28th Parliament of Ontario, through the entirety of the 29th, 30th, and 31st Parliaments of Ontario, and most of the 32nd Parliament of Ontario.
Davis resigned as Premier of Ontario in 1985 and was succeeded as Premier of Ontario by David Peterson.