Short answers, pulled from the story.
Maria de' Medici was born on the 26th of April 1575 inside the Palazzo Pitti of Florence. She spent her early years in Tuscany under the rule of her father Francesco I before becoming an orphan at twelve years old.
King Henry IV chose Marie de' Medici as his second wife because he needed money to pay back debts owed to the Medici bank amounting to 1,174,000 écus. The marriage contract provided a dowry of 600,000 écus d'or including one million livres paid in cash to resolve financial obligations.
Marie de' Medici served as Regent for eight-year-old Louis XIII from May 1610 until October 1614 when he officially attained legal majority. She retained control as head of Conseil du Roi even after ending regency but lost power following the Coup de majesté in 1617.
Construction started on Luxembourg Palace in 1615 and became one most active decorative projects across Europe during 1620s. Peter Paul Rubens created twenty-one piece series glorifying life reign between years 1622 and 1625 forming Marie de' Medici cycle now displayed inside Louvre Museum.
Marie de' Medici died of pleurisy in destitution on the 3rd of July 1642 while staying at a house loaned by friend painter Rubens in Cologne. Her body was laid to rest in France on the 8th of March 1643 in Basilica St Denis after being reburied there in 1817 following exhumation during French Revolution year 1793.