Events from the year 1673 in England.

Incumbents

• Monarch – Charles II
• Parliament – Cavalier

Events

• 22 January – impostor Mary Carleton is hanged in Newgate Prison in London for multiple thefts and returning from penal transportation.
• 8 March – under pressure from Parliament, King Charles II withdraws the Royal Declaration of Indulgence.^[1]
• 29 March – the Test Act is passed, preventing Roman Catholics from holding public office.^[1]
• 28 May (7 June New Style) – Third Anglo-Dutch War: First Battle of Schooneveld – The Dutch Republic fleet commanded by Michiel de Ruyter defeats the allied Anglo-French fleet commanded by Prince Rupert of the Rhine.
• 4 June (14 June New Style) – Third Anglo-Dutch War: Second Battle of Schooneveld – The Dutch fleet again defeats the Anglo-French.
• 12 June – James, Duke of York, is forced to resign the office of Lord High Admiral because of the Test Act, making his Catholicism public.^[1]
• 19 June – Thomas Osborne becomes Lord High Treasurer.^[1]
• 3 July – Elkanah Settle's play The Empress of Morocco first publicly performed at the Dorset Garden Theatre in London by the Duke's Company and published with illustrations.^[2]
• 30 July (9 August New Style) – Third Anglo-Dutch War: a Dutch fleet retakes New York in the American colonies, renaming it New Orange.
• 11 August (21 August New Style) – Third Anglo-Dutch War: Battle of Texel (Kijkduin) – The Dutch fleet again defeats the Anglo-French, preventing England's Blackheath Army from landing in Zeeland.
• 9 November – the King removes Anthony Ashley Cooper, 1st Earl of Shaftesbury, from his position as Lord Chancellor.
• 14 November – architect Christopher Wren is knighted.^[1]
• 23 November – the widowed James, Duke of York, the King's brother and heir, marries Mary of Modena;^[3] they meet for the first time immediately before the ceremony in Dover.

Undated

• Chelsea Physic Garden established as the Apothecaries’ Garden in London.^[4][5]

Births

• 6 January – James Brydges, 1st Duke of Chandos, Member of Parliament (died 1744)
• 3 February – Philip Stanhope, 3rd Earl of Chesterfield, (died 1726)
• 21 July – John Weaver, dancer and choreographer (died 1760)
• August – Henry FitzJames, illegitimate son of James II (died 1702)
• 11 August – Richard Mead, physician (died 1754)
• 16 October – Lady Mary Tudor, illegitimate daughter of Charles II, child actress (died 1726)
• Sir James Lowther, 4th Baronet, Member of Parliament (died 1755)
• John Oldmixon, historian (died 1742)
• James Stanhope, 1st Earl Stanhope, statesman and soldier (died 1721)

Deaths

• 22 January – Mary Carleton, imposter (born 1642) (hanged)
• 20 May – Sir Edward Bagot, 2nd Baronet, Member of Parliament (born 1616)
• 12 July – Sir William Strickland, 1st Baronet, Member of Parliament (born c. 1596)
• 13 July – Sir Robert Long, 1st Baronet, politician (born c. 1600)
• 21 August – Henry Grey, 1st Earl of Stamford, soldier (born c. 1599)
• 10 October – Thomas Bradley, priest (born 1597)
• 17 October – Thomas Clifford, 1st Baron Clifford of Chudleigh, statesman (born 1630)
• 15 December – Margaret Cavendish, writer (born 1623)^[6]
• 31 December – Oliver St John, statesman and judge (born c. 1598)
• Henry Herbert, Master of the Revels (born 1595)
• William Rainborowe, Leveller (year of birth unknown)