Events of 1529

January–June

• March 7/9 – Battle of Shimbra Kure: Imam Ahmad ibn Ibrihim al-Ghazi, with 200 men armed with matchlocks, defeats the army of Lebna Dengel, Emperor of Ethiopia.

• April 8 – Flensburg Disputation. The Disputation was a debate, attended by Stadtholder Christian of Schleswig-Holstein (later King Christian III of Denmark) between Lutherans (led by Hermann Fast) and the more radical Anabaptists (led by Melchior Hoffman). Johannes Bugenhagen, a close associate of Martin Luther, presided. The Disputation marks the rejection of radical ideas by the Danish Reformation.

• April 19 – At the Diet of Speyer, a group of rulers (German: Fürst) and independent cities (German: Reichsstadt) protests the reinstatement of the Edict of Worms, beginning the Protestant movement.

• April 22 – The Treaty of Saragossa divides the eastern hemisphere between Spain and Portugal, stipulating that the dividing line should lie 297.5 leagues or 17° east of the Moluccas.

• May 10 – The Turkish army under Suleiman I leaves Constantinople to once again invade Hungary.

July–December

• July 30 – Only Continental outbreak of English sweating sickness reaches Lübeck, spreading from there into Schleswig-Holstein in next few months.

• August 5 – Emperor Charles V and Francis I of France sign the Treaty of Cambrai, or the "Ladies' Peace". Francis abandons his claims in Italy, but is allowed to retain Burgundy.

September 23: Suleiman besieges Vienna.

• September 8

• *Buda is recaptured by the invading Turkish forces.

• *The city of Maracaibo, Venezuela is founded by Ambrosius Ehinger.

• September 23 – Vienna is besieged by the Turkish forces of Suleiman.

• October 15 – With the season growing late, Suleiman abandons the siege.

Undated

• Thomas Wolsey, Archbishop of York, fails to bring about the divorce and annulment Henry VIII had sought and is forced to resign.

• Aylesbury is granted the county town of Buckinghamshire in England by King Henry VIII.

• Stephen Báthory becomes governor of Transylvania.

Fluorine.

• Boromrajathira IV succeeds Rama Thibodi II as king of Ayutthaya.

• Fluorine is first described by Georg Agricola.

• Giorgio Vasari visits Rome.

• Pietro Bembo becomes historiographer of Venice.

• Heinrich Bullinger becomes pastor of Bremgarten.

Births

• April 3 – Michael Neander, German mathematician and historian (d. 1581)

• April 25 – Francesco Patrizi, Italian philosopher and scientist (d. 1597)

• June 7 – Étienne Pasquier, French lawyer and writer (d. 1615)

• June 14 – Archduke Ferdinand II of Austria, regent of Tyrol and Further Austria (d. 1595)

• date unknown

• *Titu Cusi, Inca ruler of Vilcabamba (d. 1571)

• *Giambologna, Italian sculptor (d. 1608)

• *Henry Sidney, lord deputy of Ireland (d. 1586)

• *Michał Wiśniowiecki, prince at Wiśniowiec (d. 1584)

• *Taddeo Zuccari, Italian painter (d. 1566)

Deaths

• January 7 – Peter Vischer the Elder, German sculptor (b. 1455)

• February 2 – Baldassare Castiglione, Italian writer and diplomat (b. 1478)

• February 4 – Ludwig Haetzer, German Protestant reformer (executed) (b. 1500)

• April 20 – Silvio Passerini, cardinal and lord of Florence (b. 1469)

• June 21 – John Skelton, English poet (b. c. 1460)

• September 6 – George Blaurock, Swiss founder of the Anabaptist Church (b. 1491)

• November 20 – Karl von Miltitz, papal nuncio (b. c. 1490)

• date unknown

• *Krishnadevaraya, Vijaynagar emperor

• *Andrea Sansovino, Italian sculptor (b. 1467)

• *Petrus Särkilahti, Finnish Lutheran and scientist

• *Wang Yangming, Chinese official (b. 1472)

• probable

• *Lo Spagna, Italian painter

• possible

• *La Malinche, interpreter and translator for Hernán Cortés during the Conquest of Mexicon