[3] Prince Edward had been an electoral district in the Legislative Assembly of Upper Canada,[4] and its boundaries were not altered by the Union Act.

Those boundaries had originally been set by a proclamation of the first Lieutenant Governor of Upper Canada, John Graves Simcoe, in 1792: That the tenth of the said counties be hereafter called by the name of the county of Prince Edward; which county is to be bounded on the south by lake Ontario, on the west by the carrying-place on the isthmus of the Presque isle d'Quinte, on the north by the bay of Quinte, and on the east, from point Pleasant to point Traverse, by its several shores and bays, including the late township of Ameliasburg, Sophiasburg, and Marysburg.

[5]The boundaries had been further defined by a statute of Upper Canada in 1798: That the townships of Ameliasburg, Hallowell, Sophiasburg and Marysburg, with such of the Islands in the Bay of Quinté and Lake Ontario as are wholly or in greater part opposite thereto, and such as were not formerly included in the County of Ontario, do constitute and form the County of Prince Edward.

[10] It was succeeded by the electoral districts of Prince Edward in both the House of Commons of Canada[11] and the Legislative Assembly of Ontario.

[12] This article incorporates text from this source, which is in the public domain: Proclamation, Lieutenant Governor John Graves Simcoe, July 16, 1792.