Constance Markievicz, while detained in Holloway prison, becomes the first woman to be elected Member of Parliament (MP) to the British House of Commons.

Constance Georgine Markievicz, also known as Countess Markievicz and Madame Markievicz, was an Irish revolutionary nationalist politician, suffragist and socialist who was the first woman elected to the Parliament of the United Kingdom. She came from the upper class Anglo-Irish Protestant landowning elite of Ireland, which she abandoned in favour of Irish independence and social reform.

In the United Kingdom, a Member of Parliament (MP) is an individual elected to serve in the House of Commons, the lower house of the Parliament of the United Kingdom.

The House of Commons is the lower house of the Parliament of the United Kingdom. Like the upper house, the House of Lords, it meets in the Palace of Westminster in London, England. The House of Commons is an elected body consisting of 650 members known as members of Parliament (MPs), who are elected to represent constituencies by the first-past-the-post system and hold their seats until Parliament is dissolved.