SQUIRE of Alsatia,
a Man of Fortune, drawn in, cheated, and ruin'd by a Pack of poor, lowsy, spunging Fellows, that lived (formerly) in White-Fryars. The Squire, a Sir Timothy Treat-all; also a Sap-Pate. A fat Squire; A rich Fool.
Squire of Alsatia in the 1811 Vulgar Tongue
Also see examples in Canting Songs and Slang Rhymes collected by John S. Farmer (1896).