Walter Stewart was a Scottish courtier and politician who sat in the House of Commons

House of Commons of England

The House of Commons of England was the lower house of the Parliament of England from its development in the 14th century to the union of England and Scotland in 1707, when it was replaced by the House of Commons of Great Britain...

 from 1624 to 1625.

Stewart was admitted to Gray's Inn

Gray's Inn

The Honourable Society of Gray's Inn, commonly known as Gray's Inn, is one of the four Inns of Court in London. To be called to the Bar and practise as a barrister in England and Wales, an individual must belong to one of these Inns...

 on 9 March 1620 when he was a Gentleman of the Privy Chamber to James I. In 1624, he 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 Monmouth Boroughs

Monmouth Boroughs (UK Parliament constituency)

Monmouth Boroughs was a parliamentary constituency consisting of several towns in Monmouthshire...

but was unseated on petition on 28 March 1624 on the objection that he was a "Scotchman" and not naturalised. However he was re-elected MP for Monmouth in 1625 without further question.