Two members of this family were attacked during Mass at the Duomo as part of the Pazzi ["paat-zee"] conspiracy to remove this family from power.
One member of this family built the Palais du Luxembourg while acting as regent for her son, Louis XIII. In addition to that member, Marie, this was also the family Pope Clement VII, who refused to annul Henry VIII's marriage. Two members of this family were attacked during Mass at the Duomo as part of the Pazzi ["paat-zee"] conspiracy to remove this family from power. Although this family held significant political power, they initially gained power through banking. For 10 points, name this powerful family of Florence, whose members include Cosimo and Lorenzo the Magnificent.
One member of this family built the Palais du Luxembourg while acting as regent for her son, Louis XIII.
House of {Medici}