What was the name of Tecumseh's brother, known as a Shawnee leader as well?

Tecumseh's brother was known as "The Prophet," which is the correct answer. He was a prominent Shawnee leader named Tenskwatawa, and he played a vital role in the early 19th-century movement to unite various Native American tribes against the encroachment of white settlers. As "The Prophet," he claimed to have received visions and spiritual guidance, which he used to inspire and mobilize Native peoples for resistance against American expansion into their lands. His teachings emphasized a return to traditional ways and a rejection of European influences, aligning closely with Tecumseh's political and military goals for Native American unity and resistance. This brotherly partnership was key in the opposition to U.S. policies during this era.

The other names listed refer to different individuals or contexts that do not fit the description of Tecumseh's brother. Black Hawk was a leader of the Sauk tribe and known for leading resistance against American expansion during the Black Hawk War. Powhatan was a leader of the Powhatan Confederacy in the early 1600s, long before Tecumseh's time. Point Pleasant is a location that pertains to a battle rather than an individual.