In the English-American common law, quo warranto is a prerogative writ issued by a court which orders someone to show what authority they have for exercising some right, power, or franchise they claim
Illustration of a famous anecdote by Walter of Guisborough: John de Warenne, 6th Earl of Surrey (left of painting) is served a writ of Quo warranto and in response draws a sword, calling it his warrant; he adds, "My ancestors came with William the Bastard, and conquered their lands with the sword, and I will defend them with the sword against anyone wishing to seize them." (Painting by Robert Edge Pine, 1770)
Jose Calida, above, is credited with substantially expanding the quo warranto power, after his arguments were looked upon with favor by the Supreme Court in Republic v. Sereno.
The City of London Corporation, officially and legally the Mayor and Commonalty and Citizens of the City of London, is the local authority of the City of London, the historic centre of London and the
Quo warranto
…and Edward III were published by the Record Commission in 1818. The most famous historical instance of quo warranto was the action taken against the Corporation of London by Charles II in 1683. The King's Bench adjudged the charter and franchises of the City of London to be forfeited to the Crown, though this judgment…
Guildhall, Londres, Inglaterra, 2014 08 11, DD 139
The Swordbearer and Macebearer walk ahead of the Lord Mayor, who is escorted by his ward beadle
The Guildhall's North Wing, housing the Corporation's offices.
On formal occasions, as here in the Guildhall's Old Library, the Common Councilmen wear blue fur-trimmed robes.