The Philistines: Country of: Divided Into Five Sates of Lordships
Source: TTT
Joshua 13:3
from the Shihor east of Egypt to the territory of Ekron on the north (considered to be Canaanite territory)—that of the five Philistine rulers of Gaza, Ashdod, Ashkelon, Gath, and Ekron, as well as that of the Avvites;
Judges 3:3
the five rulers of the Philistines, all the Canaanites, the Sidonians, and the Hivites who lived in the mountains of Lebanon from Mount Baal-hermon to Lebo-hamath.
1 Samuel 6:16
And when the five rulers of the Philistines saw this, they returned to Ekron that same day.