Elena Glinskaya ruled what would become Russia as regent for her son, wisely and ably in fact, until her life and reign were brought to brutal ends.
Elena Glinskaya: Powerful and Poisoned Regent

Elena Glinskaya ruled what would become Russia as regent for her son, wisely and ably in fact, until her life and reign were brought to brutal ends.
When Anne Boleyn was executed, her husband famously moved on eleven days later. But her mother’s devastation often goes unnoticed.
Elizabeth Tailboys was a daughter of Henry VIII, but since she was illegitimate, her story isn't told much, though it seems quite fascinating.
Catherine Gonsalvus was married off to a "freak" as a joke, but probably had a happy marriage, despite European royalty treating her family like animals.
Catherine of Aragon is famous for being the unfortunate first wife of King Henry VIII. When he was just a royal nobody, Catherine became ill with sweating sickness.
Mary, Queen of Scots, is famous for being executed by her cousin, Queen Elizabeth I. Before her beheading, Mary wrote a letter to her brother-in-law, Henri III.
Sibylle of Cleves was a sister-in-law of Henry VIII who is all but forgotten. She was the eldest daughter, a mother of four Johns, and a brave defender of Wittenberg.
Marina Mniszech, known as Marinka the Witch, was the wife of an impostor and ended up becoming the cause of his downfall and her own brutal end.
Poisoned, poisoned, poisoned, imprisoned, murdered, imprisoned, drowned, and survived. Here are the stories of the eight unfortunate wives of Ivan the Terrible.
Lucrezia Borgia and the entire Borgia family are quite infamous. Lucrezia wasn’t exactly undeserving of her reputation, but her story is crazier than we think.