Question: Who was the sibling of Nannina de' Medici?

title: Mother with a Child and a Chambermaid
text: Mother with a Child and a Chambermaid (1665-1668) is an oil on canvas painting by the Dutch painter Pieter de Hooch, it is an example of Dutch Golden Age painting and is part of the collection of the Amsterdam Museum.

title: James III of Cyprus
text: James III of Cyprus (or Jacques III de Lusignan) (6 July 1473 – 26 August 1474) was the only child by the marriage of James II of Cyprus and Catherine Cornaro. He died in mysterious circumstances as an infant, leaving his mother as the last Queen of Cyprus. His death paved the way for Venice to gain control of Cyprus.

title: Portrait of Pietro Aretino
text: The Portrait of Pietro Aretino is a portrait of the Renaissance poet Pietro Aretino by Titian, painted around 1545, possibly for Cosimo I de' Medici. It is now in the sali di Venere of Palazzo Pitti in Florence.

title: Henry IV Receiving the Spanish Ambassador
text: Henry IV Receiving the Spanish Ambassador is an 1817 painting in the Troubador style by the French painter Jean Auguste Dominique Ingres. It shows Henry IV of France playing with his children whilst receiving the Spanish ambassador, with Marie de Medici seated at the centre.

title: Vasari Corridor
text: The Vasari Corridor was built in five months by order of Duke Cosimo I de' Medici in 1565, to the design of Giorgio Vasari.  It was commissioned in connection with the marriage of Cosimo's son, Francesco, with Johanna of Austria.

title: Hôtel de Soissons
text: The Hôtel de Soissons was a "hôtel particulier" (grand house) built in Paris, France, between 1574 and 1584 for Catherine de' Medici (1519–89) by the architect Jean Bullant (1515–78).

title: Paul Phélypeaux de Pontchartrain
text: Paul Phélypeaux de Pontchartrain: Paul Phélypeaux de Pontchartrain (1569 – 21 October 1621), lord of Pontchartrain and Villesavin, was a French statesman. He served both Marie de' Medici and her son Louis XIII during a period of conflict between Catholics and Protestants in France, the French Wars of Religion. He was one of the negotiators of the Treaty of Loudun in 1616.

title: Portrait of Ippolito de' Medici
text: The Portrait of Ippolito de' Medici is a 1532-33 portrait of Ippolito de' Medici by Titian, now in the Palazzo Pitti.

title: Portrait of Carlo de' Medici
text: The Portrait of Carlo de' Medici is a painting by the Italian Renaissance master Andrea Mantegna, executed in 1466. It is now housed in the Uffizi Gallery of Florence.

title: The Age of the Medici
text: The Age of the Medici, originally released in Italy as L'età di Cosimo de Medici ("The Age of Cosimo de Medici"), is a 1973 3-part TV series about the Renaissance in Florence, directed by Roberto Rossellini. The series was shot in English in the hope of securing a North American release, which it failed to achieve, and was later dubbed into Italian and shown on state television. The films are: "Cosimo de Medici", "The Power of Cosimo" and "Leon Battista Alberti: Humanism". It is Fred Ward's debut role.

title: Medici Fountain
text: The Medici Fountain (fr: "La fontaine Médicis") is a monumental fountain in the Jardin du Luxembourg in the 6th arrondissement in Paris. It was built in about 1630 by Marie de' Medici, the widow of King Henry IV of France and regent of King Louis XIII of France. It was moved to its present location and extensively rebuilt in 1864-66.

title: Pope Clement VII
text: Pope Clement VII (; ) (26 May 1478 – 25 September 1534), born Giulio di Giuliano de' Medici, was head of the Catholic Church and ruler of the Papal States from 19 November 1523 to his death on 25 September 1534.

title: Pietro de' Medici
text: Don Pietro de' Medici (3 June 1554 – 25 April 1604) was the youngest son of Cosimo I de' Medici, Grand Duke of Tuscany and Eleonora di Toledo.

title: Giovanni di Bicci de' Medici
text: Giovanni di Bicci de' Medici was born in Florence, Italy. He was the son of Averardo de' Medici and Jacopa Spini. His father, Averardo died in 1363 with a respectable amount of wealth. This inheritance was divided among Giovanni and his four brothers, leaving Giovanni with very little. However, his uncle, Vieri de’ Medici, was still a prominent banker in Florence. Vieri helped Giovanni begin his career in the Florentine banking system. He worked his way up through the ranks, eventually becoming a junior partner in the branch located in Rome. Vieri de’ Medici retired in 1393 leaving the bank in the hands of Giovanni. From this point the Medici bank grew vastly and quickly. This growth culminated with the acquisition as the Chief Papal Banker, which meant that the Medici Bank now handled the accounts of the Church. The Medici family bank, which he founded in 1397, became his main commercial interest. The Medici bank under Giovanni had branches throughout the northern Italian city-states and beyond, and constituted an early "multi-national" company.

title: Margherita de' Medici
text: Margherita de' Medici (31 May 1612 – 6 February 1679) was Duchess of Parma and Piacenza by her marriage to Odoardo Farnese, Duke of Parma. Margherita was regent of Piacenza in 1635, and regent of the entire duchy from 1646 until 1648 during the minority of her son.

title: Gian Giacomo Medici
text: Gian Giacomo Medici was the brother of Giovanni Angelo Medici, who was later to be elected Pope as Pius IV. They were scions of an impoverished though patrician family of Milan not connected with the Medici of Florence, in spite of the Medici heraldic "palle" appearing in the contemporary engraving ("illustration"): thus the nickname "Il Medeghino", the "little Medici".

title: Maria Maddalena de' Medici
text: Maria Maddalena de' Medici (29 June 1600 – 28 December 1633) was a Tuscan princess, the eighth daughter of Ferdinando I and Christina of Lorraine, making her the sister of Cosimo II.

title: Garzia de' Medici
text: Garzia de' Medici (July 5, 1547 – December 6, 1562) was the son of Cosimo I de' Medici, Grand Duke of Tuscany, and Eleanor of Toledo. He was the subject of a famous painting by Bronzino when he was an infant. He was born in Florence and died of malaria along with his mother while traveling to Pisa, a few days after his brother, Cardinal Giovanni, also died of the disease.

title: Giuliano de' Medici
text: Giuliano de' Medici (25 March 1453 – 26 April 1478) was the second son of Piero de' Medici (the Gouty) and Lucrezia Tornabuoni. As co-ruler of Florence, with his brother Lorenzo the Magnificent, he complemented his brother's image as the "patron of the arts" with his own image as the handsome, sporting, "golden boy."

title: Nannina de' Medici
text: 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.

Answer: Giuliano de' Medici