The Ottoman Admiral Barbarossa captured Nice on 5 August 1543 and handed it down to Francis I.

The conquests of Nice ( 1543 ) and Corsica ( 1553 ) occurred on behalf of France as a joint venture between the forces of the French king Francis I and the Ottoman sultan Suleiman I, and were commanded by the Ottoman admirals Barbarossa Hayreddin Pasha and Turgut Reis.

* Mary Boleyn ( 1499 – 1543 ): mistress of King Henry VIII of England and ( allegedly ) lover of King Francis I of France

In 1543, Nice was attacked by the united Franco-Ottoman forces of Francis I and Barbarossa Hayreddin Pasha, in the Siege of Nice ; and, though the inhabitants repulsed the assault which succeeded the terrible bombardment, they were ultimately compelled to surrender, and Barbarossa was allowed to pillage the city and to carry off 2, 500 captives.

In 1543, Francis I found a surprising new ally in his battle against the Holy Roman Empire.

In 1543 Charles allied himself with Henry VIII and forced Francis to sign the Truce of Crépy-en-Laonnois.

In 1543 it was evident that he could not rely on the protection of Francis.

Thus he participated in the emperor's army in the war against the forces of the Sultan Suleiman the Magnificent of the Ottoman Empire ( 1542 ), Duke William of Jülich-Cleves-Berg ( 1543 ), and King Francis I of France ( 1544 ).

Guillaume du BellayGuillaume du Bellay, seigneur de Langey ( 1491, Glatigny-9 January 1543, Saint-Symphorien-de-Lay ), from a notable Angevin family was a French diplomat and general under King Francis I.

* 1532 – 1553: Francis of Waldeck ( 11 Jun 1532 Appointed-15 Jul 1553 Died ; from 1543 on Lutheran )

* Afonso I of Kongo-( 1505 – 1543 )

* Afonso I of Kongo ( c. 1456 – 1542 or 1543 ), king of Kingdom of Kongo in west central Africa

* Afonso I of Kongo ( 1456 – 1543 ) the first Christian king of the Kingdom of Kongo

* 1543: George Frederick I / I / I / I ( son of, also Margrave of Brandenburg-Kulmbach, Duke of Brandenburg-Jägerndorf and Regent of Prussia )

* 1541 – 1543: George I / I the Pious ( also Margrave of Brandenburg-Ansbach )

* 1543 – 1603: George Frederick I / I / I / I ( also Margrave of Brandenburg-Ansbach, Margrave of Brandenburg-Kulmbach and Regent of Prussia )

* Magnus I, Duke of Saxe-Lauenburg ( 1488 – 1543 )

Being replaced after his death in 1506 by his son Nzinga Mbemba who ruled as king Afonso I until 1543.

Some of them show the influence of the motets of Alfonso Ferrabosco I ( 1543 – 1588 ), a Bolognese musician who worked in the Tudor court at intervals between 1562 and 1578.

Following the death of her father, James V, King of Scots, Mary I was crowned Queen of Scots in Stirling Castle on 9 September 1543, at the age of nine months.

* John, 6th Duke of Braganza ( 1543 – 1583 ), aka John I, Duke of Braganza

* Magnus I, Duke of Lauenburg ( 1470 – 1543 ), Duke of Saxe-Lauenburg from the Ascanian House

Holbein's final portrait of Henry, dating from 1543 and perhaps completed by others, depicts the king with a group of barber surgeons.,

It was created in 1543 for Murrough O ' Brien, Prince of Thomond, who was descended from the great high king Brian Boru ).

The king broke the ceasefire in January 1543 and sent a new and larger army into the rebellious area.

Cast-iron cannon were made in the Weald from 1543 when Buxted's Ralf Hogge cast the first iron cannon for his unlikely employer: a Sussex vicar who was gunstonemaker to the king.

On 18 March 1543, Sir George Douglas of Pittendreich, brother of the Earl of Angus told the English ambassador, Ralph Sadler that ;" if there be any motion now to take the Governor from his state, and to bring the government of this realm to the king of England, I assure you it is impossible to be done at this time.

In 1543 another son, Orazio, was sent to the court of the king of France.

Colambu and Siaiu were the first natives of the archipelago, which was not yet named " Philippines " until the expedition of Ruy Lopez de Villalobos in 1543, to attend the mass among other Mazaua inhabitants, together with visitors from Butuan who came with the entourage of Rajah Colambu, king of Butuan

His restless and turbulent nature marked him out for a military career ; and having collected a small band of soldiers, he assisted Emperor Charles V in his war with France in 1543.

A month prior to the siege of Nice, France supported the Ottomans with an artillery unit during the Ottoman conquest of Esztergom in 1543.

* September 21 – François de Bonne, duc de Lesdiguières, Constable of France ( b. 1543 )

* François de Bonne, duc de Lesdiguières of France ( 1543 – 1626 ), Constable of France

This alliance emboldened William to challenge Emperor Charles V's claim to Guelders, but the French, mightily engaged on multiple fronts as they were in the long struggle to against the Habsburg " encirclement " of France, proved less reliable than the Duke's ambitions required, and he was unable to hold on to the duchy ; in 1543, by the terms of the Treaty of Venlo, Duke William conceded the Duchy of Guelders to the Emperor.

In 1543 he visited several parts of Italy, Germany and France and then returned to England.

New France, in present Canada, after a single Governor ( 24 July 1534 – 15 January 1541 Jacques Cartier ) had Lieutenants-general and Viceroys 15 January 1541 – September 1543 Jean François de la Rocquet, sieur de Robervalle ( b. c. 1500 – d.

In June 1543 he declared war on France in the King's name and was appointed Lieutenant-General of the army.

* François de Bonne, Duke of Lesdiguières ( 1543 – 1626 ), Marshal of France in 1608.

In 1543, he had been heavily involved in arranging the marriage of Mary to the Dauphin of France, prior to this she had been promised to Edward, Prince of Wales.

In 1543 he allied with Charles V, Holy Roman Emperor, ( also King of Spain ), whose Catholic allegiances were, for a time, overruled by the political advantages of an alliance against France.

François de Bonne, duc de Lesdiguières ( 1 April 1543 – 21 September 1626 ) was soldier of the French Wars of Religion and Constable of France.

In 1543 he led a small force to help the emperor Charles V in his invasion of France, and he remained at his post at Guînes until his death.

Leonardo da Vinci ( 1452 – 1519 ) used oak for his paintings in France ; Hans Baldung Grien ( 1484 / 5 – 1545 ) and Hans Holbein ( 1497 / 8 – 1543 ) used oak while working in southern Germany and England.

In 1543 he went on diplomatic business to the Netherlands, and for the next year or two he had much intercourse with the emperor Charles V He helped to conclude the Treaty of Ardres between England and France in 1546, and was resident ambassador in France from 1546 to 1549.

* Philippe de Chabot ( c. 1492 – 1543 ), Admiral of France

Philippe de Chabot, Seigneur De Brion, Count of Charny and Buzançois ( c. 1492 – June 1, 1543 ), also known as Admiral De Brion, was an admiral of France.