Premise: John Ormsby Vandeleur (1765 – 28 November 1828) was an Irish barrister, landowner and politician from Kilrush in County Clare. He sat in the House of Commons of Ireland from 1790 to 1800, and then in the House of Commons of the United Kingdom from 1801 to 1802.
Hypothesis: John Ormsby Vandeleur sat in the House of Commons of Ireland for less than eleven years.