Family and friends have paid tribute to tragic Antoin Akpom, describing him as an "incredible person" who would be "deeply missed".
They spoke of his infectious smile and "happy-go-lucky" nature.
The funeral was broadcast outside the church via a PA system.
More top news
Police in Northampton have launched a murder inquiry after a teenager died of injuries
Your forecast for the East Midlands with James Wright.
Your forecast for the West Midlands with James Wright.