[1] Julia was born in 1795 in Trichinopoly, Tamil Nadu, British India,[2] the third child of army officer Sir John Floyd, 1st Baronet and his wife, Rebecca Juliana, daughter of merchant Charles Darke.

[4] She became engaged to Peel, recently the Chief Secretary of Ireland, in March 1820 and the couple married on 8 June that year.

[1] Lady Peel died suddenly during the night of 27/28 October 1859, at her townhouse in Privy Garden, Whitehall.

The 6th Earl of Jersey was Lady Peel's son-in-law, married to her eldest daughter, Julia.

[1] The Peels had seven children:[6] Her 1827 portrait by Sir Thomas Lawrence, then President of the Royal Academy, is now in the Frick Collection in New York City.