Series synopsis
Founder: Orhan, also known as Kuruluş: Orhan is a Turkish drama action & adventure war & politics television series that premiered on atv on October 29, 2025. It ended on June 3, 2026. It stars Mert Yazıcıoğlu, Mahassine Merabet, Alina Boz and Barış Falay.
Kuruluş: Orhan is a Turkish historical drama that follows the life of Orhan Bey, the son of Osman I and the second ruler of the Ottoman Empire. Set in the 14th century, the series portrays Orhan’s transformation from a young warrior into a visionary leader who expands his father's legacy by conquering key Byzantine cities like Bursa and establishing the foundations of a powerful empire. With political intrigue, epic battles, and complex relationships, the show explores Orhan’s rise amidst intern ...
Premise
Kuruluş: Orhan is a Turkish historical drama that follows the life of Orhan Bey, the son of Osman I and the second ruler of the Ottoman Empire. Set in the 14th century, the series portrays Orhan’s transformation from a young warrior into a visionary leader who expands his father's legacy by conquering key Byzantine cities like Bursa and establishing the foundations of a powerful empire. With political intrigue, epic battles, and complex relationships, the show explores Orhan’s rise amidst internal strife and external threats, continuing the legacy of Kuruluş: Osman with a new generation of characters and high-stakes storytelling.
Premise: The Next Era Begins
Cast and characters
Leading cast
- Mert Yazıcıoğlu as Orhan
- Mahassine Merabet as Nilüfer Hatun
- Alina Boz as Princess Asporça
- Barış Falay as Şahinşah
- Burak Sergen as Tekfur Saroz
- Bennu Yıldırımlar as Malhun Hatun
- Şükrü Özyıldız as Flavius
- İpek Arkan as Fatma Hatun
Supporting cast
- Çağrı Şensoy as Cerkutay
- Yiğit Uçan as Boran
- Ömer Faruk Aran as Alaeddin Ali
- Belgin Şimşek as Gonca Hatun
- Tevfik Erman Kutlu as Avcı
- Tezhan Tezcan as Temirboga
- Murat Boncuk as Aykurt
- DincDaymen as Dursun
- Atakan Yarımdünya as Dumrul
- Cihan Ünal as Osman Bey
- Sevinç Gürşen Kıranlı as Didar Hatun
- Tezhan Tezcan as Temirboga
Episodes
This series spans 1 season with 26 episodes.
| Season | Episodes | First aired | Last aired |
|---|---|---|---|
| Season 1 | 26 | October 29, 2025 | June 10, 2026 |
| Episode | Title | Air date |
|---|---|---|
| 1 |
Episode 1 Orhan Bey continues his nine-year siege of Bursa to fulfill Osman Bey’s vision, facing formidable resistance from Saroz and Flavius. As tensions rise, Osman Bey convenes a council that could decide Bursa’s fate, with Şahinşah Bey challenging Orhan’s command and Alaeddin Bey offering himself as an alternative. Amid political turmoil, Nilüfer Hatun stands by Orhan with unwavering support, while Malhun Hatun, losing hope in Gonca, seeks a new bride for Alaeddin. Orhan escalates the conflict by killing Flavius’s brother, prompting a vow of revenge and setting the stage for a storm at Bursa’s gates. |
October 29, 2025 |
| 2 |
Episode 2 Orhan Bey returns victorious but is shaken by unexpected news, prompting him to surrender his position to Osman Bey with a solemn acceptance of fate. As tensions rise between Alaeddin and Orhan, Temurtaş's secretive alliance with Saroz and his hosting of Şahinşah and Alaeddin deepen the intrigue, especially as his schemes leave Osman Bey bedridden. Orhan faces mounting pressure from Byzantine and Ilkhanate forces while striving to fulfill his father's dream of conquering Bursa, where he confronts the vengeful Flavius in a deadly bid to rescue Boran. Meanwhile, Temurtash Noyan’s arrival threatens to upend the regional balance of power. Nilüfer Hatun’s belief that Orhan has been wronged sparks conflict among the women, potentially pitting her against Gonca and drawing a decisive response from Malhun Hatun. In a final blow, Osman Bey reclaims command of the siege and appoints Şahinşah Bey as leader, sidelining Orhan once more. |
November 5, 2025 |
| 3 |
Episode 3 As the Byzantine, Ilkhanate, and Turkmen forces unite to defend Bursa, Orhan Bey urges diplomacy to dismantle the alliance, clashing with Şahinşah’s call for immediate attack despite Osman Bey’s illness. Tensions rise in the council and within the family, as Malhun Hatun fears division among her children, especially with Gonca believing Alaeddin deserves leadership while Didar claims Malhun favors Orhan. Meanwhile, enemies Temurtash, Saroz, and Flavius plot a devastating strike on the Kayı tribe, targeting a caravan led by Fatma Hatun. Driven by vengeance, Flavius seeks to capture her, but Orhan Bey confronts him head-on, determined to fulfill a hidden purpose in their fierce showdown. |
November 12, 2025 |
Production
Release
| Original network/platform | atv |
|---|---|
| First aired | October 29, 2025 |
| Last aired | June 3, 2026 |
| Status | ended |
| Schedule | Wednesday at 20:00:00 |