[1] Patraus' relationship with the previous Paeonian king, Lyppeius, is unknown, as are the circumstances surrounding his ascension.

[3] Paeonia was made a Macedonian vassal in 356 during the course of Philip II of Macedon's Balkan campaigns.

[4] Although they retained their territory and the right to mint coins, the Paeonians were expected to provide both tribute and manpower for Macedonian military campaigns.

[5] Consequently, around 150 cavalrymen, commanded by Ariston, crossed with Alexander III's army into Asia Minor in 334.

[3] Ariston may have been a member of the Paeonian ruling house, possibly Patraus' brother, but this is only speculation.