The reason
Why is Edirne a Place of Peace
The city of Edirne, which was reconstructed as if rebuilt by the Roman Emperor Hadrian, (Publius Aelius Traianus Hadrianus) was named after him with the name Hadrianapolis. In 586, the Avar Turks besieged this place but returned without conquering it. Bulgarian Turks succeeded in conquering the city in 914. This city, which later passed to Byzantium again and this city was surrounded for the second time by Pecheneg Turks in 1050 and 1078. Edirne was finally conquered by Sultan Murat I in 1361 and became the throne (head) city of the Ottoman Empire and remained as a capital city (Payitaht) for 92 years until Istanbul was conquered in 1453.
When we think of the peace treaties in Edirne we we will have to retreat to the Sırpsındığı War in 1364. This war at the instigation of Pope Urban V, a crusading army of Hungarians, Serbians, Bosnians and Wallachians was formed and in 1364 it set forth to recapture Adrianople. After this war Edirne became capital city of Ottomans.
On the other hand, we see Edirne Treaty which was signed on 14 September 1829 in Edirne between Ottomans and Russians after the Russo-Turkish War 1828-1829. After this treaty, Independence of Greece was accepted.
According to the Mondros Armistice signed in 1918 the Karaağaç District inside Greek territory was given to Turkey as a “War Indemnity” with the sign of the Lozan Treaty in 1923. You can see the “Lozan Monument” in Edirne- Karaağaç as a symbol of peace, unity and democracy.