Jennie Jerome was born in the Cobble Hill section of Brooklyn in 1854, the second of four daughters (one died in childhood) of financier, sportsman, and speculator Leonard Jerome and his wife Clarissa (always called Clara), daughter of Ambrose Hall, a landowner. She was raised in Brooklyn, Paris, and New York City. She had two surviving sisters, Clarita (1851-1935) and Leonie (born 1859). Another sister, Camille (1855-1863) died when Jennie was nine.
Lord Randolph died in 1895, aged 45. His death freed Jennie to move effortlessly in spite of her impecuniosity; she mixed in the highest London society circles, and was much-admired by the Prince of Wales. Attending a party hosted by Daisy Warwick, Jennie was introduced to George Cornwallis-West, who was just 26 days older than Winston; he was instantly smitten, and they spent much time together. A captain in the Scots Guards, George had two sisters: Constance (known as Shelagh) was the first wife of the 2nd Duke of Westminster; Daisy was married to the Prince of Pless. George and Jennie were married on 28 July 1900 at St Paul's Church, Knightsbridge. Around this time, Jennie became well-known for chartering the hospital ship RFA Maine to care for those wounded in the Second Boer War, for which she received the decoration of the Royal Red Cross (RRC) in the South Africa Honours list published on 26 June 1902. In 1908, she wrote her memoirs The Reminiscences of Lady Randolph Churchill. George doted on Jennie, amorously nicknaming her "pussycat". However, they drifted apart. The Churchills were becoming a dedicated-literary family, and George, who was a financial failure in the City, slowly fell out of love with his wife, who was old enough to be his mother. Short of money, Jennie contemplated selling the family home in Hertfordshire to move into the Ritz Hotel in Piccadilly. George was in fragile health when he recuperated at the royal skiing resort of St Moritz. Jennie took to writing plays for the West End, in many of which the star was Mrs. Patrick Campbell. Jennie separated from George in 1912, and they were divorced in April 1914, whereupon, in a bit of irony, Cornwallis-West married Mrs. Campbell. Jennie dropped the surname Cornwallis-West, and resumed, by deed poll, the name Lady Randolph Churchill. Her third marriage, on 1 June 1918, was to Montagu Phippen Porch (1877-1964), a member of the British Civil Service in Nigeria, who was younger than Winston by three years. At the end of World War I, Porch resigned from the colonial service. After Jennie's death, he returned to West Africa, where his business investments had proven successful.

Q: How many marriages did she have?
A: Her third marriage,
How did her second marriage end?
George, who was a financial failure in the City, slowly fell out of love with his wife, who was old enough to be his mother. Jennie separated from George in 1912, and they were divorced in April 1914, Jennie separated from George in 1912, and they were divorced in April 1914, and they were divorced in April 1914, whereupon, in a bit of irony, Cornwallis-West married Mrs. Campbell.
and they were divorced in April 1914, whereupon, in a bit of irony, Cornwallis-West married Mrs. Campbell.