Orhan Bey, was the son of Osman Bey (leader of Ottoman Turks and founder of Ottoman Dynasty).
Reigned from 1326 (death of his father Osman Bey) to 1360 until his death.
Mother was Mal Hatun, daughter of Abdulaziz Bey.
Borned in 1281, Söğüt
Died in 1360, Bursa
Tughra of Orhan Gazi
- 1326Osman Bey's death. Orhan Gazi's accession to the throne. The conquest of Bursa
- 1326 Birth of Orhan Gazi’s son Murad. Orhan Gazi's brother, Alaeddin Bey appointed as vizier by Orhan Gazi. Conquest of Aydos ve Samandıra. Bursa became center of the state. The first Ottoman printing money on behalf of Osman Gazi.
- 1328 Vizier Alaeddin Pasha implementing "The First Ottoman Laws". "Yaya" army the first millitary organization of state set up by Vizier Alaeddin Pasha and Candarlı Halil Pasha. Maltepe Victory. Conquest of İznik for the second and final time.
- 1329 First millitary organization set up by Orhan Gazi.
- 1331 Appointment of Prince Süleyman Pasha as Vizier. Establishment of the first Ottoman madrasa in İznik
- 1333 Conquest of Gemlik
- 1334 Building of a mosque and charitable next to Iznik Yenişehir Door
- 1335 Establishment of the first architectural work, mosques and madrasas in Bursa
- 1336 Karesi Seigniory participates in state land. Appointment of Çandarlı Halil Pasha's to Bursa as judge
- 1337 Conquest İzmit and Koyunhisar Castles.
- 1341 Signing of the first peace treaty with the Byzantine Empire. Orhan Gazi's mariage with Kantakuzen's daughter
- 1346 Byzantine alliance.
- 1347 Orhan Gazi's meeting with Kantakuzen in Üsküdar
- 1351 Victory against the Serbs and Bulgarians. Süleyman Pasha's transition to Rumeli to help Byzantine and Çimpi Castle’s taken headquarters.
- 1352 Ottomans make concessions to Genoese for free trading in Ottoman territories. Conquest of Üsküdar, Kadıköy and Marmara Islands. First Ottoman Money(Akçe). Conquest of Thrace and Gallipoli
- 1354 Ankara's first occupation.
- 1359 Death of The Conquer of Rumeli Suleyman Pasha
- 1360 Death of Orhan Gazi. Sultan I. Murad's accession to the throne
Türbe of Orhan Gazi in Bursa