Atlas of Battles

battle, major, medieval

Battle of Pelekanon

Battle of Pelekanon was a battle fought in 1329 at Nicomedia, in what is now Turkey. It was part of the Byzantine–Ottoman wars, which ran from 1265 to 1479. The recorded result: Ottoman victory. Recorded strength: ~4,000 against ~8,000.

See it on the globe Read the article

Map showing the area of the Ottoman Empire during the reign of Orhan I and his conquests. I used the information of various historical books and these maps: http://www.forumalev.net/tarihi-resimler/38
Map showing the area of the Ottoman Empire during the reign of Orhan I and his conquests. I used the information of various historical books and these maps: http://www.forumalev.net/tarihi-resimler/38. DragonTiger23, CC BY-SA 3.0, via Wikimedia Commons.
Fought1329
WhereNicomedia, Turkey41.010N, 29.150E
OutcomeOttoman victory
BelligerentsByzantine EmpireagainstOttoman Beylik
Casualties and lossesHeavyandUnknown
Part ofByzantine–Ottoman wars1265 to 1479

Where it sits in the Byzantine–Ottoman wars

Siege of Laodicea, 1119Battle of Mount Armenia, 1282Siege of Kulaca Hisar, 1285Battle of Domaniç, 1287Siege of Karacahisar, 1288Siege of İnegöl, 1299Battle of Bapheus, 1302Siege of Bursa, 1317Siege of Mudanya, 1321Siege of Nicaea, 1328Battle of Pelekanon, 1329Siege of Nicomedia, 1333Fall of Gallipoli, 1354Reconquest of Gallipoli, 1366Fall of Philadelphia, 1378Siege of Thessalonica, 1383Fall of Constantinople, 1453Siege of Trebizond in 1461, 146011191460Battle of Pelekanon, 1329
18 placed engagements of the Byzantine–Ottoman wars in time order; taller ticks are more widely documented. Each tick is a link.

Record

Date1329 (year precision)
to 11 June 1329
PlaceNicomedia, Turkey
41.010N, 29.150E
KindBattle, medieval
Strength~4,000~8,000
Casualties and lossesHeavyUnknown
Commanders
  • Andronikos III Palaiologos
  • John VI Kantakouzenos
  • Orhan I
Battle of PelekanonBattle of PelekanonBattle of ChrysopolisBattle of ChalcedonSiege of ChalcedonBattle of the BosporusSiege of ByzantiumBattle of ChalcedonBattle of the BosporusSiege of ByzantiumBursaAdapazarıİzmitTekirdağLüleburgazKırklareliBilecik100 km41.010N, 29.150E
The recorded site, with the nearest other engagements in the atlas. Present-day coastlines, rivers and borders; towns from Natural Earth.

The ground today

Relief of the ground around the site of Battle of Pelekanon
Relief within about 10.0 km of the site, contours every 25 m. Copernicus DEM GLO-30, ESA.
Satellite view of the site of Battle of Pelekanon today
The same ground from Sentinel-2 on 2025-07-22. Contains modified Copernicus Sentinel data 2025.

The recorded site stands at about 131 m; within 10.0 km the ground runs from 0 to 340 m, 340 m of relief, hilly country and today it is 80% built-up, 17% tree cover, 2% grassland.

built-up: 80%tree cover: 17%grassland: 2%built-up 80%tree cover 17%grassland 2%
west to east, 10.0 km57 to 178 mnorth to south, 10.0 km0 to 175 m
Elevation from the Copernicus DEM GLO-30 (ESA, Airbus); land cover from ESA WorldCover 2021 (CC BY 4.0), within about 5 km of the recorded site. Computed, not recorded.

Nearest engagements

In the same war

Elsewhere in 1329

Battle of Pelekanon is one of 566 engagements of the 14th century in the atlas and one of 622 in present-day Turkey.

Sources

Identity, coordinates, dates and the war from Wikidata Q964226, released under CC0. Result, belligerents, commanders, strength and casualties from the infobox of the English Wikipedia article Battle of Pelekanon, revision 1370453009, read 2026-11-14, licensed CC BY-SA 4.0; the article's text is not reproduced here. Present-day country and state from Natural Earth. Dates before 1582 follow the Julian calendar as recorded.