when did he change his name?
In the spring of 1660
Name change
In the spring of 1660 Metacom's brother Wamsutta appeared before the court of Plymouth to request that he and his brother be given English names in accordance with Wampanoag custom, in which new names marked significant moments in time (such as, in this case, Wamsutta's father's death). 
which group of english immigrants first settled in plymouth in 1620 Puritan Separatists when did they start their journey to this place? End of July 1620 what was the name of the ship they traveled on? "Mayflower" was there a company formed? UNANSWERABLE who was the first person to explore this place? Captain John Smith what happened in philip's war? The cause of the war stems from the increasing numbers of English colonists and their demand for land. As more land was purchased from the Native Americans, they were restricted to smaller territories for themselves. what is the story behind the famous rock of this place? One of the enduring symbols of the landing of the Pilgrims is Plymouth Rock, a large granodiorite boulder that was near their landing site at Plymouth. However, none of the contemporary accounts of the actual landing makes any mention that the Rock was the specific place of landing. was philip known by a different name? Yes, He was also known as Metacomet.
1660 In the spring of 1660. In the spring of 1660
Metacomet Metacomet Metacomet
Name change Name change Name change
In the spring of 1660 Metacom's brother Wamsutta appeared before the court of Plymouth to request that he and his brother be given English names in accordance with Wampanoag custom, in which new names marked significant moments in time (such as, in this case, Wamsutta's father's death).  In the spring of 1660 Metacom's brother Wamsutta appeared before the court of Plymouth to request that he and his brother be given English names in accordance with Wampanoag custom, in which new names marked significant moments in time (such as, in this case, Wamsutta's father's death). The court agreed and Wamsutta had his name changed to Alexander, and Metacom's was changed to Philip.  In the spring of 1660 Metacom's brother Wamsutta appeared before the court of Plymouth to request that he and his brother be given English names in accordance with Wampanoag custom, in which new names marked significant moments in time (such as, in this case, Wamsutta's father's death). 
wiki:12181946
Metacomet [SEP] Name change
In the spring of 1660 Metacom's brother Wamsutta appeared before the court of Plymouth to request that he and his brother be given English names in accordance with Wampanoag custom, in which new names marked significant moments in time (such as, in this case, Wamsutta's father's death). The court agreed and Wamsutta had his name changed to Alexander, and Metacom's was changed to Philip. Author Nathaniel Philbrick has suggested that the Wampanoag may have taken action at the urging of Wamsutta's interpreter, the Christian neophyte John Sassamon. Metacom was later called "King Philip" by the English.