|Ab urbe condita||2051|
|Balinese saka calendar||1219–1220|
|English Regnal year||26 Edw. 1 – 27 Edw. 1|
|Chinese calendar||丁酉年 (Fire Rooster)|
3994 or 3934
— to —
戊戌年 (Earth Dog)
3995 or 3935
|- Vikram Samvat||1354–1355|
|- Shaka Samvat||1219–1220|
|- Kali Yuga||4398–4399|
|Japanese calendar||Einin 6|
|Minguo calendar||614 before ROC|
|Thai solar calendar||1840–1841|
1424 or 1043 or 271
— to —
1425 or 1044 or 272
|Wikimedia Commons has media related to 1298.|
- August 28 – Emperor Go-Fushimi succeeds Emperor Fushimi on the throne of Japan.
- John Tarchaneiotes is appointed governor of the southern portions of Byzantine Anatolia.
- April 20 – Rintfleisch-Pogrom: The Jews of Röttingen are burned en masse; other Jewish communities are destroyed later in the year.
- June 1 – Battle of Turaida: Residents of Riga and the Grand Duchy of Lithuania defeat the Livonian Order.
- July 2 – Battle of Göllheim: Albert I of Habsburg defeats and kills Adolf of Nassau-Weilburg.
- July 22 – Edward I of England defeats a Scottish army led by William Wallace in the Battle of Falkirk.
- August 1 – The "ideal city" of Marciac, Gascogne, France is founded by King Philippe IV le Bel and Guichard de Marzé.
- September 9 – Battle of Curzola: The Genoese fleet defeats the Venetians. Marco Polo is one of the prisoners taken, and while in prison in Genoa, he begins dictating his Travels to Rustichello da Pisa.
- After a year's siege, the revolting commune of Palestrina near Rome surrenders, and is razed to the ground and salted by order of Pope Boniface VIII, in an act of debellatio.
- The foreign creditors of the Sienese Gran Tavola Bank start demanding their deposits back, thus accelerating the liquidity crisis faced by the firm.
- Ambrose, Augustine, Jerome, and Pope Gregory I are named the first Doctors of the Church. They are known collectively as the Great Doctors of the Western Church.
- The Chinese governmental minister Wang Zhen (official) invents wooden movable type printing (Bi Sheng invented ceramic movable type in the 11th Century).
- December 12 – Albert II, Duke of Austria (d. 1358)
- date unknown
- probable – William Irvine, Scottish soldier
- January 2 – Lodomer, Hungarian archbishop
- April 17 – Árni Þorláksson, Icelandic bishop (b. 1237)
- June 11 – Yolanda of Poland, Hungarian princess (b. 1235)
- July 2 – King Adolf of Germany (b. c. 1255)
- July 13 or July 16 – Jacobus de Voragine, Italian chronicler and archbishop of Genoa
- July 22 – Sir John de Graham, Scottish soldier at the Battle of Falkirk
- July 23 – King Thoros III, King of Armenia (b. c. 1271)
- August 29 – Eleanor of England, Countess of Bar (b. 1269)
- September 11 – Philip of Artois, French soldier (b. 1269)
- September 29 – Guido I da Montefeltro, Italian military strategist (b. 1223)
- November 19 – Mechtilde, Saxon saint (b. c. 1240)
- December 31 – Humphrey de Bohun, 3rd Earl of Hereford, English soldier (b. 1249)
- date unknown
- Archibald, Scottish prelate
- Auhaduddin Kermani, Persian Sufi poet
- Gerard of Lunel, French saint
- William Houghton, Archbishop of Dublin
- John of Procida, Italian physician and diplomat (b. 1210)
- Mordecai ben Hillel, German rabbi (b. c. 1250)
- Nino Visconti, ruler of Gallula
- Emperor Smilets of Bulgaria (b. 1292)
- Williams, Hywel (2005). Cassell's Chronology of World History. London: Weidenfeld & Nicolson. ISBN 0-304-35730-8.
- Jacques, Barnouin (2014). The fabulous Destiny of Marciac. Albi, France: Un autre Reg'Art. ISBN 979-10-90894-67-9.
- Catoni, Giuliano. "BONSIGNORI". Dizionario Biografico degli Italiani. Retrieved December 20, 2011.