Chief Canonicus was born about 1562. He died on 4 Jun 1647. He was supposed to have been about 85 years old at his death. 

Conanacus was the chief sachem of the Narragansetts, the primary enemy to the Wampanoag confederation led by Massasoit. The Narragansetts were not friendly towards the Pilgrims, primarily because of their alliance with the Wampanoags. The tribe was a very strong one, consisting of as many as 5,000 warriors to the Wampanoag's approximately 3,000 warriors.
In January 1622, Conanacus sent the Pilgrims a bundle of arrows wrapped in the skin of a rattlesnake--a sign and challenge of war. The governor in return sent the rattlesnake back filled with gunpowder, but Conanacus was so scared of the English gunpowder he would not allow it into his territory. It was primarily because of the Narragansett threat that in February 1622 the Pilgrims decided to build a wall around their colony to make it easier to defend.
(source: Inman/Goodwin Genealogical Database, quoting Caleb Johnson, Mayflower Web Pages)

Tribal Names of Pennsylvania, p 13
Canonicus (Cautious).- A Sachem of the Narragansetts and the principal leader of the Indian forces. From him Roger Williams received the title of the land on which he settled and he styled " Canonicus," a prudent and peaceful prince. John Lathrope, in a poem published at Boston in 1802, praises him highly.

Native Americans of Massachusetts:
Canonicus Alive in 1623.(20) Narraganset Sachem He died on 4 Jun 1647.(21) He is thought to have been about eighty-five years old at his death. His decease was observed by all the Natives as a great and sad event. He is called a man of extraordinary capacity in Notes On the Indian Wars in New England, 12:166.
20. New England Historical & Genealogic Register 12:3+. 12:11.
21. Ibid. 12:166.

Bearce/Colvin etc. Genealogy:
CHIEF SACHEM CANONICUS
In the early times of this nation, some of the English inhabitants learned from the old Indians, that they had, previous to their arrival, a sachem, Tashtassuck. Tashtassuck had but two children, a son and a daughter, those he joined in marriage, because he could find none worthy of them out of his family. The product of this marriage was four sons, of whom Canonicus was the oldest.
Canonicus was the Grand Sachem of the Narragansetts, when the whites settled at Plymouth. He died in 1647.
The Narragansetts subsisted by hunting, fishing and, partially, by agriculture. Their lands, for eight or ten miles distant from the sea-shore, were cleared of wood, and on these prairies they raised Indian corn in abundance and furnished the early settlers of Plymouth and Massachusetts with large quantities for subsistence. They were a strong, generous and brave race. They were always more civil and courteous to the English than any of the other Indians. Their kind and hospitable treatment of the emigrants to Rhode Island and the welcome they gave our persecuted ancestors should endear their name to us all.
Canonicus, the sachem of the Narragansetts, whose territory had escaped the ravages of the pestilence, at first desired to treat of peace; in 1622, a bundle of arrows, wrapped in the skin of a rattlesnake, was his message of hostility. But, when Bradford sent back the skin stuffed with powder and shot, his courage quailed, and he sued for amity.
Canonicus, now chief of the Narragansetts, had given his allegiance to the king and was at peace with the colonists. The Rhode Island colony had received its charter from the king, and were taking no part in the war. In spite of all this, the united Colonies formed an army to attack a peaceful tribe of Indians located outside their jurisdiction. This army formed in Boston, marched through Providence and Warwick on their way to the Great Swamp.
Not until their territory was actually invaded did the Narragansetts offer resistance.
The government of the Narraganssetts appears to have been a patriarchal despotism. Miantenomi was the nephew of Canonicus, son of his brother Mascus. Canonicus, in his advanced age, admitted Miantenomi into the government, and they administered the sachemdom jointly. The different small tribes, under the separate sub-sachems, composed the great Narragansett nation. The succession to chief authority was generally preserved in the same family. The sub-sachems occupied the soil and were moved from it at the will and pleasure of their chiefs.
In the war between the Narragansetts and Mohegans, in 1643, Miantenomi was captured by Uncas, the sachem of the Mohegans, and executed. Pessecus, the brother of Miantenomi, was then admitted sachem with Canonicus. He was put to death by the Mohawks, in 1676.
Canonchet, the son of the brave but unfortunate Miantenomi, was the last sachem of the race. He commanded the Indians at the Great Swamp Fight, in 1675. This battle exterminated the Narragansetts as a nation. He was captured near the Blackstone river, after the war, and executed for the crime of defending his country and refusing to surrender the territories of his ancestors by a treaty of peace. It was glory enough for a nation to have expired with such a chief. The coolness, fortitude, and heroism of his fall stands without a parallel in ancient or modern times. He was offered life, upon the condition that he would treat for the submission of his subjects; his untamed spirit indignantly rejected the ignominious proposition. When the sentence was announced to him that then he must die, he said, "I like it well, that I shall die before my heart grows soft, or that I have said anything unworthy of myself." Thus ended the last chief of the Narragansetts, and with Canonchet the nation was extinguished forever.

Sources:
-- History of the United States
-- The House of Carr--A Historical Sketch of the Carr Family from 1450 to 1926 by W.L. Watson.
-- The History of Massachusetts Bay
-- Bearse-Bears-Barss Family, Genealogy of Augustine Bearse and Princess Mary Hyanno by Franklin Bearse

He was married to Posh-Pw.

Posh-Pw was born about 1565. Children were:

i. daughter of Canonicus.
ii. Makanno was also known as Mriksah.