Overpol clan was a family that founded and ruled the Overpol Expanse for three generations. Founded by Dod Overpol, the clan was known for keeping their private life away from the public eye, as well as using propaganda and ideology to spread their influence to the extent unusual in their time.

Because of that, the story of their rise is somewhat mythologized and the circumstances of their downfall has a lot of unanswered questions.

Dod /dʌd/ Overpol (19th CSR - 1901 SR) was born in the northern region of Tarnaria. The little that's known about her childhood was captured and mythologized in children's stories about “wise Grandma Dod” which became popular in the Overpol Expanse. The tradition has since died out and no stories have survived.

Historical data is scarce. Dod was an ardent follower of the dark green stron of Xaewoon. She met and married a superhero warrior known as the Forest Leveler. Their life goal was what they called The Big Adventure, which meant walking the plains and forests of the world on foot in search of the Mamkoon.

Together they traveled from Tarnaria to the forest near the Taverda river. They set up a small house near the river, which they called Dav, which means “cornerstone” in bukk.

Dod considered herself a prophet who could see the future. She became known in the villages nearby and people would come to see her. As she spread her influence, she also began spreading the Xaewoon religion, including the message about the Mamkoon.

Eventually people began building their houses near Dod's and Forest Leveler house and a whole community grew around them. Dod became the leader of the community and the Forest Leveler became its guardian. People flocked to Dav, searching for peace and protection.

There is virtually no information on the early years of Dav. Sources mention only Dod and the Forest Leveler, but it is clear that this cannot be the case. The Overpol family, later denoted as the Overpol clan, was very numerous and their traveling party consisted of more than just Dod and the Forest Leveler: by the end of the 60s of 19th CSR multiple settlements on the Taverda river were ruled or at least led by Overpols.

In 1873 SR Dav was already well known down the river as a prosperous city full of wonders, more specifically known for its gardens and very high trees. The latter is a curious bit of history, since no evidence of any special type of tree has ever been uncovered, and yet the information appears in several independent sources. It is possible that the “high trees” is a reference to the Dav Garden, which was built on the roof of the Dav Palace and was indeed seen from afar, although the latter had been competed only by 1894.

By mid 70s of 19th CSR Dod Overpol announced The Expansion, with the desire to significantly expand the borders of the community. At that time the region around Taverda river did not have large states and consisted mostly of city-states and fortified settelments. Some of them took Dod's announcement as an invitation for protection and joined, some saw it as an ultimatum.

The Kingdom of Mamkoon had an exclave in the area called Mamkoon Tre which consisted of three large cities centered around a salt mining operation. Led by a Mamkoon representative Dul Tremant, they sent a small regiment to Dav, in order to intimidate Dod. Kareden soldiers marched in front of Dav's gates, pointing spears toward the city. There was no immediate reaction from Dod, but several months later the Mamkoon Tre Campaign began. The war and sieges lasted for two years, with Mamkoon Tre eventually yielding to the Overpol Expanse, only to abandon all the three cities. No salt mines had been found, leaving Dod empty-handed.

In 1881 Dod Overpol moved down the river to Delbar and announced it as the capital of the country she called the Overpol Expanse. Delbar was also referred by her as the High Hill. Her reason for moving the capital from Dav to Delbar was her desire to move focus away from Dav, the city that she wanted to keep as the home of the Overpol clan.

The Forest Leveler died in 1890, but this was concealed by Dod for many years, due to her fearing that this might undermine her power.