Tombs of Osman Gazi and Orhan Gazi: Founders of the Ottoman Empire, Tophane Guide

1. Essential Facts and Quick Visit Snapshot

The Tombs of Osman Gazi and Orhan Gazi stand as the solemn resting places of the supreme founding fathers of the Ottoman Empire: Osman I, who established the dynasty, and his son Orhan I, who captured Bursa in 1326 and transformed a frontier principality into a sovereign state. Prominently situated side by side within the historic Tophane Park atop the high bastions of Bursa Citadel (Hisar), these two imperial mausoleums represent the focal sanctuary of Ottoman dynastic memory. In 2014, they were designated a primary component of the UNESCO World Heritage Site "Bursa and Cumalıkızık: The Birth of the Ottoman Empire."

2. Osman Gazi's Testament: "Lay Me Beneath the Silver Dome"

During the protracted siege of Byzantine Prusa (Bursa) in the early 1320s, Osman Gazi stood with his son and heir Orhan on a distant ridge overlooking the citadel. Pointing toward the glistening lead-sheathed cupola of the Byzantine Saint Elie Monastery chapel on the summit, Osman uttered his famous last will: "My son! When I pass away, lay my body beneath that cupola shining like silver on the citadel of Bursa."

When Osman died, he was initially interred in Söğüt. However, on April 6, 1326, upon taking the city after an eleven-year siege, Orhan Gazi dutifully fulfilled his father's sacred request by translating his remains to this elevated cupola. Known by the Turks as Gümüşlü Kümbet (The Silver Dome) due to its brilliant reflection under Anatolian sunlight, it became the inaugural royal pantheon of the burgeoning Ottoman state.

3. The 1855 Cataclysm and Reconstruction by Sultan Abdülaziz

For more than five centuries, both founding rulers lay enshrined in these converted Byzantine structures. Tragedy struck during the devastating earthquakes of February and April 1855, which utterly obliterated the ancient chapel and church, burying both dynastic founders under rubble.

Visiting the ruined city, Sultan Abdülaziz decreed the erection of two dignified new neoclassical monuments directly over the historic foundations. Completed in 1863, Osman's tomb was built in an octagonal plan, while Orhan's received a square layout. Remarkably, the 11th-century Byzantine floor mosaics of the original Saint Elie Basilica were carefully preserved inside Orhan Gazi's tomb, remaining visible to this day beneath protective glass flooring.

4. Interior of Osman Gazi's Tomb: Mother-of-Pearl Sarcophagus

The interior of Osman Gazi's mausoleum exudes profound sovereign serenity:

• The Imperial Sarcophagus: At the center rests Osman Gazi's monumental walnut sarcophagus, lavishly inlaid with mother-of-pearl (sedef kakma) and draped in dark green velvet embroidered with golden Quranic verses and imperial tughras.
• Dynastic Kinsfolk: Surrounding the founder are 17 sarcophagi, including his son Alaaddin Bey (the empire's first vizier and legal organizer), Orhan's Byzantine-born consort Asporça Hatun, and Prince Savcı Bey.
• Atmospheric Detail: Nineteenth-century Bohemian crystal chandeliers and intricate neoclassical ceiling plasterwork complete the dignified space.

5. Interior of Orhan Gazi's Tomb: The Conqueror and Nilüfer Hatun

Just across the flagstoned plaza stands the Tomb of Orhan Gazi, resting upon four stout marble columns under a lofty dome:

The conqueror of Bursa rests within a grand central sarcophagus encircled by cast-brass balustrades. Twenty royal relatives share his resting place, notably his esteemed consort Nilüfer Hatun, who funded countless architectural landmarks throughout Bursa, as well as princes Musa Çelebi and Kasım. The visible Byzantine floor mosaics below remind visitors of the dramatic transition from Byzantine imperial rule to the Ottoman Pax.

6. The Hourly Alp Guard Changing Ceremony

A beloved highlight for visitors is the ceremonial Alp Guard (Saygı Nöbeti) stationed at the entrances of both tombs. Dressed in authentic 14th-century warrior regalia—leather caps (börk), lamellar armor, battle-axes, and shields—the guards maintain silent vigil over the founders.

Every hour on the hour, a formal military changing-of-the-guard ceremony takes place, accompanied by traditional prayers and marching rhythms, recreating the spirit of the early Ottoman frontier beylik.

7. Tophane Park, the Clock Tower, and Panoramic City Views

Beyond the tombs, Tophane Park serves as Bursa's premiere observation terrace:

• Tophane Clock Tower: Rising 33 meters in six tiers behind the tombs, this handsome stone tower was erected in 1905 to mark the 29th anniversary of Sultan Abdülhamid II's accession.
• Historic Cannons: Imperial bronze field guns along the parapets have signaled Ramadan iftar times across the valley for over a century.
• Panoramic Vista: Looking down from the stone ramparts, visitors enjoy an unrivaled panorama encompassing Mount Uludağ, the twenty domes of Grand Mosque (Ulu Cami), and the bustling bazaar roofs of Koza Han.

8. Visitor Planning, Access, and Nearby Culinary Pairings

• Access via Panoramic Elevator: Visitors with walking difficulties can bypass the steep citadel steps by using the free public Hillside Elevator (Yamaç Asansörü) located behind Zafer Plaza.
• Walking Route: Descending from Tophane leads directly into the historic Bazaar District and Grand Mosque in under 7 minutes.
• Local Dining: Sip Turkish coffee under the century-old plane trees overlooking the city, enjoy fresh Bursa Pideli Köfte near Çakırhamam, and purchase authentic candied chestnuts (Kestane Şekeri) along Atatürk Avenue.