William Napleton Molesworth-St Aubyn (18 October 1838 - 29 June 1895) was an English Conservative

Conservative Party (UK)

The Conservative Party, formally the Conservative and Unionist Party, is a centre-right political party in the United Kingdom that adheres to the philosophies of conservatism and British unionism. It is the largest political party in the UK, and is currently the largest single party in the House...

 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

Harrow School

Harrow School, commonly known simply as "Harrow", is an English independent school for boys situated in the town of Harrow, in north-west London.. The school is of worldwide renown. There is some evidence that there has been a school on the site since 1243 but the Harrow School we know today was...

 and Christ Church, Oxford

Christ Church, Oxford

Christ Church or house of Christ, and thus sometimes known as The House), is one of the largest constituent colleges of the University of Oxford in England...

. He was called to the bar at Lincoln's Inn

Lincoln's Inn

The Honourable Society of Lincoln's Inn is one of four Inns of Court in London to which barristers of England and Wales belong and where they are called to the Bar. The other three are Middle Temple, Inner Temple and Gray's Inn. Although Lincoln's Inn is able to trace its official records beyond...

 and went on the western circuit and the Devon and Exeter sessions.

At the 1880 general election

United Kingdom general election, 1880

-Seats summary:-References:*F. W. S. Craig, British Electoral Facts: 1832-1987* British Electoral Facts 1832-1999, compiled and edited by Colin Rallings and Michael Thrasher *...

 Molesworth-St Aubyn was elected Member of Parliament

Member of Parliament

A Member of Parliament is a representative of the voters to a :parliament. In many countries with bicameral parliaments, the term applies specifically to members of the lower house, as upper houses often have a different title, such as senate, and thus also have different titles for its members,...

 for Helston

Helston (UK Parliament constituency)

Helston, sometimes known as Helleston, was a parliamentary borough centred on the small town of Helston in Cornwall.Using the bloc vote system of election, it returned two Members of Parliament to the House of Commons of England until 1707, then to House of Commons of Great Britain until 1800, and...

. He held the seat until 1885.

Molesworth-St Aubyn died at the age of 56.

Molesworth St Aubyn married Annie Coles, daughter of George Coles of Southsea.