Louis-Philippe Mercier
Louis- Philippe Mercier was a politician from Quebec, Canada.
Prince Philippe, Count of Paris
Prince Philippe of Orléans, Count of Paris( Louis Philippe Albert; 24 August 1838 – 8 September 1894), was the grandson of Louis Philippe I, King of the French.
He was the Count of Paris as Orléanist claimant to the French throne from 1848 until his death.
Joannes Cnobbaert
Jan or Joannes Cnobbaert( 1590 – 1637) was a printer- bookseller and printmaker in Baroque Antwerp.
Joannes Masius
Jan Maes or Joannes Masius( active 1566–1615) was a printer and bookseller in the university town of Leuven in the Habsburg Netherlands.
Louis Philippe, Crown Prince of Belgium
Louis- Philippe, Crown Prince of Belgium( Louis Philippe Léopold Victor Ernest; 24 July 1833 – 16 May 1834), was the eldest child and heir- apparent of King Leopold I of the Belgians and his second wife, Princess Louise d'Orléans.
Louis-Philippe McGraw
Louis- Philippe McGraw( born October 26, 1971 in Sainte- Rose, New Brunswick) is a lawyer in the province of New Brunswick, Canada.
He is a former member of the Legislative Assembly of New Brunswick, having served from 1999 to 2003.
In 2008 he was appointed Commissioner and Vice- President of the National Parole Board.
McGraw studied at the University of Moncton, graduating with Bachelor of Business Administration, Bachelor of Laws, and Master of Business Administration degrees.
He was admitted to the Bar of New Brunswick in 1997 and set up a law practice in Saint- Isidore.
Louis- Philippe McGraw began his involvement in politics as a Liberal and was youth chair of Bernard Richard's unsuccessful bid for the Liberal leadership in 1998.
He joined the Progressive Conservative Party of New Brunswick and was elected to the 54th New Brunswick Legislative Assembly in 1999 to represent the electoral district of Centre- Péninsule.
He was defeated in a bid for re-election in 2003 by Denis Landry, whom McGraw had defeated in 1999.
McGraw was defeated in a third rematch against Landry in the 2006 election.
From the 2006 federal election until the provincial campaign later that year, McGraw served as an advisor to federal cabinet minister Greg Thompson.
Joannes Cassianus Pompe
Joannes Cassianus Pompe( 9 September 1901, Utrecht – 15 April 1945, Sint Pancras) was a Dutch pathologist.
In 1932, he characterized the condition now known as Glycogen storage disease type II.
It is sometimes referred to as Pompe's disease.
John Martyn (botanist)
John Martyn or Joannes Martyn( 12 September 1699 – 29 January 1768) was an English botanist.
Étienne-Denis Pasquier
Étienne- Denis, duc de Pasquier( 21 April 17675 July 1862)," Chancelier de France",( a title revived for him by Louis- Philippe in 1837), was a French statesman.
In 1842, he was elected a member of the Académie française, and in the same year was created a duke by Louis- Philippe.
Jan van Wintelroy
Jan van Wintelroy or Joannes Wintelroy( fl. 1520 – 1576) was a Franco- Flemish composer and choirmaster.

Question: Who is older, Joannes Cassianus Pompe or Louis-Philippe McGraw?
Answer: Joannes Cassianus Pompe