Peter Simon Pallas
Peter Simon Pallas FRS FRSE( 22 September 1741 – 8 September 1811) was a Prussian zoologist and botanist who worked in Russia( 1767 – 1810).
Peter Simon (actor)
Peter Simon( born September 27, 1943 in New York City, New York) is an American actor.
Peter Liss
Peter Simon Liss CBE FRS( born 27 October 1942) is a British environmental scientist, and professorial fellow, at the University of East Anglia.
Greg Ballora
Greg Ballora( born 1965, and also known as Gregory Ballora, Gregory B. Ballora and Gregory Bellora) is an American puppeteer.
Gregory O'Brien
Gregory Leo O’Brien( born 1961) is a New Zealand poet, painter and editor.
Peter Simon (businessman)
Peter Simon( born August 1949) is a British businessman, and the founder and owner of fashion retailer Monsoon Accessorize.
According to" The Sunday Times Rich List", Simon has a net worth of £ 480 million.
Kate Hall (soap opera writer)
Kate Hall is an American television soap opera writer.
She is the daughter of veteran soap opera writer and actor Courtney Simon and soap opera actor Peter Simon.
Peter Simon (presenter)
Peter Simon is an English shopping television presenter and former children's television personality.
He is the patron of the Shin Splints organisation.
Peter Simon (politician)
Peter Simon( born 4 April 1967) was Member of the European Parliament( MEP) representing Germany from 2009 until 2019.
Peter Msigwa
Peter Simon Msigwa( born 8 June 1965) is a Tanzanian CHADEMA politician and Member of Parliament for Iringa Town constituency since 2010.

Question: Does Peter Simon (Politician) have the same nationality as Gregory O'Brien?
Answer: no