Tsigkos

North of Oitylo, where the old settlement of Petrouliniaka once stood, a fortified monastery survives in poor condition. Its protective wall includes one ruined round tower beside the gate, while a tall square tower within, recently renovated, still stands. The foundation date is uncertain, placed in the sixteenth or seventeenth century. A local historian, Laskaris, claimed in 1886, without verifiable evidence, that it was established in 1537 after a victorious battle against the Turks.

From the mid-nineteenth century the monastery served as the residence of the Petroulas family, who seized the territory by force. It was abandoned after a grim episode in the Greek Civil War: in 1946, seven family members were executed there by right-wing opponents. The site now reads as a layered relic, part fortress, part monastic refuge, part private stronghold, its stones holding the memory of a turbulent local history.