Situated south of the Bursa kaza, the kaza Edrenos/Atranos and its administrative center of the same name were named after the Roman Emperor Hadrian(us; 117-138), to whom both the foundation of the settlement named after him and the fortress situated on a hill to the north-west were attributed. The ancient Greek form of the toponym Adrianoí is documented for the year 535, the Greek form of the name Adrianas or Edrenos for the year 1468, from which the name Adranos (Atranos) has been derived since the 1890s. In Ottoman sources the name Beyce has been used since 1911. In republican-Turkish times the name was changed to Orhaneli.
Christian population
“More than 4,000 Armenians (…) lived in three localities in the kaza of Edrenos (…), most of them peasants who earned a living by raising silkworms.” Their deportation started in August 1915.[1]
