In 1598 she married Sir Anthony Markham of Sedgebrook, Lincolnshire. He had been educated at Caius College, Cambridge and Gray's Inn. They were married at Ridlington, in Rutland, by the Rector, Thomas Gibson. She had four children. He died on 10 December 1604. After her husband's death, Bridget became a lady of the bedchamber to Anne of Denmark, Queen consort of King James VI and I. This appointment was due to the influence of her cousin the Countess of Bedford. She continued to manage her lands at Sedgebrook. Bridget, Lady Markham, died at Twickenham Park, a house belonging to the Countess of Bedford, on 4 May 1609. A relation, and fellow courtier and protégée of the Countess of Bedford, Cecily Bulstrode was also ill at Twickenham, and she died on 6 August 1609.
But as the tide doth wash the slimy beach, And leaves embroidered works upon the sand, So is her flesh refined by death's cold hand. As men of China, after an age's stay Do take up porcelain, where they buried clay; So at this grave, her limbeck, which refines The diamonds, rubies, sapphires, pearls, and mines, Of which this flesh was, her soul shall inspire Flesh of such stuff, as God, when his last fire Annuls this world, to recompense it, shall, Make and name then, th'elixir of this all.
Bridget's eldest son Robert Markham of Sedgebrook was a Royalist; a younger son Henry fought for Parliament. As recorded by the inscription at Twickenham, and in her will, she had two more children, John and Frances. Bridget's will was "published" on 3 May 1609, the day before she died. She hoped Frances would inherit and use her "childbed linen" at Sedgebrook, and her sons would go toCambridge University. She left a legacy of £20 to Catherine Widmerpoole, a servant of the Countess of Bedford. She gave her sister Anne Harington, Lady Foljambe, a locket with a picture of the Countess of Bedford, and her latest husband Sir John Molyneux of Teversal was made her administrator. To the Countess of Bedford she left her coach and mares, with the household silver she had pawned in London, a crimson velvet gown and a suite of tawny clothes embroidered with cloth of silver, and Bedford was to look after Frances with an allowance of £50 yearly. She gave her fellow courtier Jane Meautys her ruby and diamond buttons. She wanted three memento mori rings with "death's heads" bought as gifts for Sir Henry Carey, the poet Benjamin Rudyerd, and John Gill. Rudyerd was a contributor to the "Newes, from Anywhence" anthology, with Markham's kinswoman Cecily Bulstrode, and married another cousin Elizabeth Harington. Her daughter Frances Markham was brought up by the Countess of Bedford, but died at Exton Hall in Rutland in September 1614, two months before her wedding.
Family
Her four children were;
John Markham, who married Eleanor Tyringham, daughter Sir Thomas Tyringham of Tyringham. After his death she married Thomas Mordaunt son of James, Lord Mordaunt.
Robert Markham of Sedgebrook, married Rebecca Eyre, Rebecca Hussey.