Hendrick formed a close alliance with Sir William Johnson, the Superintendent of Indian affairs in North America.

Hereditary offices and property are passed through the maternal line[3] and the mother's oldest brother plays a prominent role in her children's lives, especially for boys.

European colonists referred to it as the "Upper Castle", in the Mohawk River valley upriver and west of Schenectady.

He was not one of the fifty League sachems of the Iroquois Grand Council, made up of representatives of the Five Nations (six, after the Tuscarora were admitted in 1722).

[7] Theyanoguin was killed at the Battle of Lake George on September 8, 1755, on a mission to stop the southern advance of the French army; he was bayonetted after his horse was shot dead.

[8] Sir William Johnson established an Anglican mission in Canajoharie in 1769, when he paid for the Indian Castle Church to be built nearby.