John Townshend St Aubyn, 2nd Baron St Levan
Brigadier- General John Townshend St Aubyn, 2nd Baron St Levan,( 23 September 1857 – 10 November 1940), known as Hon. John Townshend St Aubyn from 1866 to 1908, was a British army officer and peer.
John St Aubyn (Parliamentarian)
John St Aubyn( 1613–1684) was an English politician who sat in the House of Commons of England in 1640.
He served as a colonel in the parliamentary army in the English Civil War.
St Aubyn was the eldest son of John St. Aubyn of Clowance, Cornwall and his wife Catherine Arundell, daughter of John Arundell of Trerice.
He entered Middle Temple in 1631.
In April 1640, St Aubyn was elected Member of Parliament for Tregoney.
He became commissioner for assessment for Cornwall, commissioner for sequestrations and commissioner for levying of money in 1643.
In 1644 for was commissioner for execution of ordinances and became High Sheriff of Cornwall to 1645.
He became recorder of St Ives in 1646.
St Aubyn was a colonel in the parliamentary army and took part in the capture of St Michael's Mount in 1646.
He was appointed Governor of the Mount in 1647 when it became a prison.
St Aubyn became freeman of Plymouth in 1648 and also commissioner for militia in Cornwall.
In 1649 he became Vice- Admiral for South Cornwall and in 1650 he became a J.P. until 1653.
He became a commissioner for security in 1655.
In 1656 he was elected MP for Cornwall in the Second Protectorate Parliament.
He was commissioner for assessment for Cornwall and became a JP again in 1657.
He was commissioner for militia in Cornwall in 1659.
In April 1659 he was elected MP for St Ives in the Third Protectorate Parliament.
In 1659 he purchased St Michael's Mount from the Bassett family and it became his home.
He was one of the Cornish gentry who met at Truro in December 1659 to demand a free Parliament.
He was commissioner for assessment for Cornwall again in January 1660 and commissioner for militia for Cornwall again in March 1660.
In April 1660 St Aubyn was re-elected MP for St Ives in the Convention Parliament in a double return.
He became colonel of the militia in April 1660.
He did not stand for parliament in 1661.
He was stannator of Tywarnwhaile in 1663 and commissioner for assessment for Cornwall from 1663 to 1680.
He was High Sheriff of Cornwall again in 1666.
St Aubyn married Catherine Godolphin daughter of Francis Godolphin of Treveneage, and had six sons and four daughters.
His son John was created baronet and MP for Mitchell.
Louis Léonard Antoine de Colli-Ricci
Louis Léonard Antoine de Colli- Ricci( 23 March 1760 – 31 March 1806) was an Italian general.
Catherine St Aubyn
Catherine St Aubyn( 1760 – 1836) was a Cornish amateur artist.
John St Aubyn, 1st Baron St Levan
John St Aubyn, 1st Baron St Levan( 23 October 1829 – 14 May 1908), known as Sir John St Aubyn, 2nd Baronet, from 1872 to 1887, was a British Liberal, and later Liberal Unionist, politician who sat in the House of Commons from 1858 until 1887 when he was raised to the peerage.
Edward St Aubyn
Edward St Aubyn( born 14 January 1960) is an English author and journalist noted for his semi-autobiographical" Patrick Melrose" novels.
He is the author of eight novels.
In 2006," Mother's Milk" was nominated for the Booker Prize.
Nick St Aubyn
Nicholas Francis St Aubyn( born 19 November 1955) is a Conservative Party politician in the United Kingdom.
James Piers St Aubyn
James Piers St Aubyn( 6 April 1815 – 8 May 1895), often referred to as J P St Aubyn, was an English architect of the Victorian era, known for his church architecture and confident restorations.
William Molesworth-St Aubyn
William Napleton Molesworth- St Aubyn( 18 October 1838 – 29 June 1895) was an English Conservative politician who sat in the House of Commons from 1880 to 1885.
Molesworth- St Aubyn was the son of Rev. Hender Molesworth- St Aubyn of Clowance, Cornwall and his wife Helen Matilda Isabelle Napleton, daughter of Rev. T Napleton of Powderham, Devon.
He was educated at Harrow School and Christ Church, Oxford.
He was called to the bar at Lincoln's Inn and went on the western circuit and the Devon and Exeter sessions.
At the 1880 general election Molesworth- St Aubyn was elected Member of Parliament for Helston.
He held the seat until the borough was disenfranchised in 1885.
At the 1885 general election, he contested the Truro seat, where he was defeated by the Liberal Party candidate William Bickford- Smith.
Molesworth St Aubyn married Annie Coles, daughter of George Coles of Southsea.
Jean-Louis Léonard
Jean- Louis Léonard( born 24 July 1950 in Besançon( Doubs) is a French politician and a member of the Union for a Popular Movement( UMP).
A mayor of Châtelaillon- Plage from 1984 to 1995 and again since 1996, he has been a 16th vice- president of the Agglomeration community of La Rochelle since March 2008.
A former municipal councillor of La Rochelle( 1995- 1996), he represented two constituencies in the National Assembly of France: Charente- Maritime's 1st constituency( 1993 − 1997) and Charente- Maritime's 2nd constituency( 2002 − 2012).

Question: Who is older, Jean-Louis Léonard or Edward St Aubyn?
Answer: Jean-Louis Léonard