Catherine de' Medici, Governor of Siena
Caterina de' Medici (2 May 159317 April 1629) was Duchess of Mantua and Montferrat as the second wife of Duke Ferdinando and Governor of Siena from 1627.
She was the second daughter of Grand Duke Ferdinando I of Tuscany and his wife Christina of Lorraine.
Cosimo Ruggeri
Cosimo Ruggeri, in France called Côme Ruggieri( died 28 March 1615), was an Italian astrologer, favorite and influential adviser of the queen regent of France, Catherine de Medici.
He was the subject of many legends in the folklore of Catherine de Medici, and reputed as a master of the occult, black magic and witchcraft during his lifetime.
Christina of Lorraine
Christina of Lorraine or Christine de Lorraine (16 August 1565 – 19 December 1637) was a member of the House of Lorraine and was the Grand Duchess of Tuscany by marriage.
She served as Regent of Tuscany jointly with her daughter-in-law during the minority of her grandson from 1621 to 1628.
Nannina de' Medici
Nannina de' Medici( 14 February 1448 – 14 May 1493), born Lucrezia de' Medici, was the second daughter of Piero di Cosimo de' Medici and Lucrezia Tornabuoni.
She was thus the elder sister of Lorenzo de' Medici.
She married Bernardo Rucellai.
Her father's name was Piero, so she is sometimes known as Lucrezia di Piero de' Medici.
Theodred II (Bishop of Elmham)
Theodred II was a medieval Bishop of Elmham.
The date of Theodred's consecration unknown, but the date of his death was sometime between 995 and 997.
Lorenzo de' Medici, Duke of Urbino
Lorenzo di Piero de' Medici( 12 September 1492 – 4 May 1519) was the ruler of Florence from 1516 until his death in 1519.
He was also Duke of Urbino during the same period.
His daughter Catherine de' Medici became Queen Consort of France, while his illegitimate son, Alessandro de' Medici, became the first Duke of Florence.
Giovanni di Bicci de' Medici
Giovanni di Bicci de' Medici( c. 1360 – February 1429) was an Italian banker and founder of the Medici Bank.
While other members of the Medici family, such as Chiarissimo di Giambuono de' Medici, who served in the Signoria of Florence in 1201, and Salvestro de' Medici, who was implicated in the Ciompi Revolt of 1378, are of historical interest, it was Giovanni's founding of the family bank that truly initiated the family's rise to power in Florence.
He was the father of Cosimo de' Medici and Lorenzo de' Medici, and an ancestor of other notable Medici rulers.
For example, he was the grandfather of Piero di Cosimo de' Medici; the great- grandfather of Lorenzo de' Medici( the Magnificent); and the great- great- great- grandfather of Cosimo I de' Medici, Grand Duke of Tuscany.
Edith Helen Sichel
Edith Helen Sichel was an English author, sister of Walter Sichel.
She was born on 13 December 1862, in London, to Jewish migrants from Germany who converted to Christianity, and educated at home by private teachers.
She was the writer of:" Two Salons"( 1895);" The Household of the Lafayettes"( 1897);" Women and Men of the French Renaissance"( 1901);" Catherine de' Medici"( 1905);" Life and Letters of Alfred Ainger"( 1906);" The Later Years of Catherine de' Medici"( 1908);" Michel de Montaigne"( 1911); and" The Renaissance"( 1914).
She died on 13 August 1914 in Carnforth( Lancashire).
Isabelle de Limeuil
Isabelle de la Tour, Lady of Limeuil( c. 1535 – 25 March 1609) was a French noblewoman and a Maid of Honour to the Queen Mother Catherine de' Medici.
She also formed part of Catherine's notorious" flying squadronL'escadron volant"), a group of beautiful female spies she used for the purpose of forming sexual liaisons with various powerful men at the French court thereby extracting information which would then be passed on to her.
In about 1562 at Catherine's instigation, she became the mistress of Louis, Prince of Condé, brother of King Antoine of Navarre and one of the leading Huguenots in France.
Two years later when Isabelle created a scandal by giving birth to his son whilst the court was on a royal progress, she was banished to a convent.
She later married wealthy Tuscan banker Scipion Sardini, a favoured protégé of Catherine de' Medici.
Françoise de Rohan
Françoise de Rohan
( 1540 – 1 December 1591) was a French duchess and courtier.
She served as lady- in- waiting to queen Catherine de' Medici.

Question: What is the date of death of Catherine De' Medici, Governor Of Siena's mother?
Answer: 19 December 1637