The first synod of pope Urban II starts in Melfi, with seventy bishops and twelve abbots in attendance. The synod issues several decrees about church law and deals with the relation with the Greek part of the Church.

The synod of Melfi was an ecclesiastical synod held in Melfi from 10 to 15 September 1089, convened by pope Urban II. Seventy bishops and twelve abbots attended and the synod dealt with various ecclesiastic topics connected to the reform movement as well the relation with the Greek part of the church.