The funeral is being held of 14-year-old Daniel Anjorin, who died in a sword attack in east London last month.
Daniel, described as a "positive and gentle" boy, was attacked near his home as he walked to school in Hainault on 30 April, with four other people injured, including two police officers.
Mourners have been gathering at Jubilee Church in Ilford, some bearing flowers.
Daniel's family are understood to have been members of the church for more than 15 years.
It is where Daniel was baptised.
In a statement issued by the Metropolitan Police, the family previously said: "We as a family are devastated by the loss of our beloved son Daniel.
"It is difficult for us at this time to process what has happened to him and that he will never come home. Daniel had left the house for school and then he was gone.
"Our children have lost their loving and precious brother and we have lost the most loved and amazing son."
The family also sent "best wishes" to the other victims of the attack, thanked the local community for its support, and asked for privacy.
A Go Fund Me page set up in Daniel's honour on behalf of his mother, Grace Anjorin, has received more than £150,000.
A message from "Mr and Mrs Anjorin and family" posted on the page thanked the community for its emotional and financial support.
"In the wake of our son Daniel's tragic death we wish to thank you for your support which has been a source of comfort and strength to our family", they said.
"We deeply appreciate your generous donation."
The family continued: "Due to the trauma of Daniel's death particularly on his siblings we have decided to use the donation provided towards establishing a new family home.
"This home will not only provide a place of solace and gathering for our family but will also stand as a lasting tribute to Daniel's legacy."
Daniel was a pupil at Bancroft's school, in Woodford Green, east London.
A tribute on the school's website read: "He was a true scholar, demonstrating commendable dedication to his academic pursuits.
"His positive nature and gentle character will leave a lasting impact on us. Losing such a young pupil is something we will always struggle to come to terms with."
Four others were injured in the attack, including two police officers. Their injuries were serious but not fatal.
Marcus Arduini Monzo, 36, a dual Spanish-Brazilian national living in Newham, east London, has been charged with murder, two counts of attempted murder and two counts of causing grievous bodily harm with intent.
Listen to the best of BBC Radio London on Sounds and follow BBC London on Facebook, external, X, external and Instagram, external. Send your story ideas to hello.bbclondon@bbc.co.uk