But now he has been assessed as being 18.
Mr Taylor told the court: 'The girl was undoubtedly drunk and was walking the streets alone late at night.'
'The Crown's case is that her drunkenness, youth and vulnerability would have been recognised by the defendants.'
'And it was these factors that they took advantage of in the couple of hours that followed.'
'Through drink, and most likely the trauma of what happened to her, she was unable to provide any detailed descriptions.
'The girl had found herself in a room of the second floor above a takeaway.
'In that grubby room, with an uncovered mattress on the floor, multiple males had sex with the teenager.
'She says that she did not consent.
'Indeed, you may well conclude that she was too drunk to give any true consent to any sexual intercourse in any event.
'But what is clear is that each of the men took the opportunity to have a little 'fun' at her expense.'
The victim told the jury: 'I'm not sure how many were in the room; think there were four or five of them.
'They were all like push, pushing, pushing me like to each other.
'One of them pushed me onto the bed. They were all laughing.
'They were laughing as they walked over, I think there was one or two by the door.
'I can't remember much after that to be honest, they kept swapping over, they were having sex.
'I told them to stop. I moved but they just carried on.'
After the attacks, she was 'escorted' out of the property by one of the men 'and left to roam the streets alone'.
The girl was found 'sobbing and distressed' by a woman returning home and taken into her home for safety.