Wikipedia
Tambouras
The tambouras ( is a Greek traditional string instrument of Byzantine origin. It has existed since at least the 10th century, when it was known in Assyria and Egypt. At that time, it might have between two and six strings, but Arabs adopted it, and called it a Tanbur. The characteristic long neck and two strings, tuned 5 notes apart.
It also similar instrument Tambur in Turkish and each of them have same origin.