What was the cause of the disagreements between Uncas and Sassacus?

Question

Uncas was a subchief of the Pequots under tribal leader Sassacus but he broke with the tribe and with some followers formed the Mohegan tribe. What was the cause of the discord between them?

Answer 1

Ambition and envy.

"The division had its roots in the personal rivalry between Sassacus and his son-in-law Uncas. Both had been sub-sachems and expected to succeed the grand sachem Wopigwooit when he died in 1631. However, the Pequot council selected Sassacus, and Uncas never accepted this. Their rivalry continued afterwards in bitter council debates over the fur trade. With Sassacus favoring the Dutch, a pro-English faction gathered around Uncas. The arguments grew increasingly heated which made trade along the Connecticut River dangerous for both Dutch and English with the different Pequot factions killing and robbing traders unfortunate enough to cross paths with the wrong group of them. Uncas was eventually forced to leave and form his own village. Other Pequot and Mattabesic soon joined him, and taking their name of Uncas' wolf clan, the Mohegan became a separate tribe hostile to the Pequot. Smallpox hit the Connecticut tribes during the winter of 1633-34. The timing of these events could not have been worse, because in 1634, the Pequot, or rather their western Niantic allies, murdered John Stone, a Boston trader. "