A man and a woman have been charged with GBH and affray after incidents in Kingsbury Square during the early hours.
Tristan Bailey, 26, of Springfield Close, Aylesbury was found guilty by jury on Friday of one count of grievous bodily harm.
Brenna Wilson, 22, of Springfield Close, Aylesbury, was found guilty by jury on the same date of one count of affray.
The offences took place at around 3am on Sunday September 20 in Kingsbury Square.
Both Bailey and Wilson will be sentenced at Amersham Crown court on June 24 2016.