"Herod" was the name of a family who ruled in the region now called Palestine from about 73 B.C. to 100 A.D. According to the World Book Encyclopedia (article: "Herod"), Herod the Great was "king of Judea."
Here is a very informative website I found:
http://www.eretzyisroel.org/~jkatz/meaning.html
Here are some excerpts:
HOW DID THE LAND OF ISRAEL BECOME "PALESTINE"?,
In the First Century CE, the Romans crushed the independent kingdom of Judea. After the failed rebellion of Bar Kokhba in the Second Century CE, the Roman Emperor Hadrian determined to wipe out the identity of Israel-Judah-Judea. Therefore, he took the name Palastina and imposed it on all the Land of Israel. At the same time, he changed the name of Jerusalem to Aelia Capitolina.
The Romans killed many Jews and sold many more in slavery. Some of those who survived still alive and free left the devastated country, but there was never a complete abandonment of the Land. There was never a time when there were not Jews and Jewish communities, though the size and conditions of those communities fluctuated greatly.
THE HISTORY OF PALESTINE
Thousands of years before the Romans invented "Palastina" the land had been known as "Canaan". The Canaanites had many tiny city-states, each one at times independent and at times a vassal of an Egyptian or Hittite king. The Canaanites never united into a state. After the Exodus from Egypt probably in the Thirteenth Century BCE but perhaps earlier -- , the Children of Israel settled in the land of Canaan. There they formed first a tribal confederation, and then the biblical kingdoms of Israel and Judah, and the post-biblical kingdom of Judea.
From the beginning of history to this day, Israel-Judah-Judea has the only united, independent, sovereign nation-state that ever existed in "Palestine" west of the Jordan River. (In biblical times, Ammon, Moab and Edom as well as Israel had land east of the Jordan, but they disappeared in antiquity and no other nation took their place until the British invented Trans-Jordan in the 1920s.)
There is much more - highly recommended!