US ResearchConflictsColonial and Pre-ColumbianChelmsford Raid
Colonial and Pre-Columbian

Chelmsford Raid

1676
Massachusetts
Era
Colonial and Pre-Columbian
Year
1676
Location
Massachusetts
Status
Historical record
The Combatants

Who Fought

Defeated
Massachusetts Bay Colony
Forces
defender: Chelmsford settlers
VS
Victor
Nipmuc
Forces
attacker: Nipmuc warriors
Outcome
Monoco burned Groton to the ground and forced its inhabitants to flee to Concord following his raid on March 13, 1676.
The Battle

History & Significance

Monoco, a 17th-century Nashaway sachem known to New England Puritans as One-eyed John, led indigenous forces during King Philip's War, a broader native-settler conflict that erupted after decades of peaceful coexistence gave way to mounting tensions. The Nashaway, under Monoco's leadership and alongside Sagamore Sam, attacked the English settlement at Lancaster, Massachusetts, in August 1675 and again in February 1676, demonstrating the widespread nature of indigenous resistance across the region. During the February raid, Monoco kidnapped Mary Rowlandson and her children, an action that would have lasting historical significance through Rowlandson's subsequent published account.

On March 13, 1676, Monoco led a raid on Groton, Massachusetts, where he seized control of a garrison house in the town center. He then engaged in negotiations with Captain James Parker, during which he made explicit threats against neighboring colonial settlements including Chelmsford, Concord, Watertown, Cambridge, Charlestown, Roxbury, and Boston. According to the article, Monoco declared his intentions with the phrase "What me will - me do," after which he burned Groton to the ground, forcing its inhabitants to evacuate to Concord.

The raid and its aftermath demonstrated the vulnerability of colonial settlements to coordinated indigenous attacks during King Philip's War. Monoco's actions, including the destruction of Groton and his threats against multiple settlements, reflected the intensity of the conflict between native peoples and English colonists. Monoco himself died in 1676, marking the end of his role in this significant period of colonial-indigenous warfare.

Historical context

European colonization of North America accelerated after 1600, with England, France, Spain, and the Netherlands establishing competing settlements along the Atlantic coast, the St. Lawrence River, the Gulf of Mexico, and the Mississippi Valley. The first permanent English settlement at Jamestown, Virginia (1607) struggled with starvation and conflict; the Plymouth colony (1620) and the Massachusetts Bay Colony (1630) followed. By the mid-1700s, thirteen English colonies stretched along the Atlantic seaboard, governed through a mix of royal charters, proprietary grants, and elected assemblies. The colonial economy depended on tobacco in Virginia and Maryland, rice and indigo in the Carolinas, and maritime trade in New England — all increasingly reliant on enslaved African labor after 1619. Conflict with Indigenous peoples over land was continuous, punctuated by major wars including King Philip's War (1675–1676) in New England and the Yamasee War (1715–1717) in the South. The French and Indian War (1754–1763), part of the global Seven Years' War, ended French power in North America and left Britain deeply in debt — triggering the taxation disputes that would lead to revolution.

Casualties & Losses

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Questions & Answers

Frequently Asked Questions

When did Chelmsford Raid take place?
Chelmsford Raid took place in 1676.
Where was Chelmsford Raid fought?
Chelmsford Raid was fought in Massachusetts, United States.
What was the outcome of Chelmsford Raid?
Monoco burned Groton to the ground and forced its inhabitants to flee to Concord following his raid on March 13, 1676.
What was the significance of Chelmsford Raid?
Monoco, a 17th-century Nashaway sachem known to New England Puritans as One-eyed John, led indigenous forces during King Philip's War, a broader native-settler conflict that erupted after decades of peaceful coexistence gave way to mounting tensions. The Nashaway, under Monoco's leadership and along
Protected heritage nearby

Historic Sites near Chelmsford Raid

Hildreth-Robbins House
Civil War · 2 mi
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Source

Content adapted from Wikipedia under the Creative Commons Attribution-ShareAlike 4.0 International License.

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