She has/had a relationship with John II Fortescue.
Child(ren):
The Boleyn Pedigree in Gurney[1] documented Alice Boleyn as the daughter of Sir Geoffrey Boleyn and Anne Hoo; and the wife of Sir John Fortescue.
In the will of her father, Geoffrey Boleyn, the will made on 14 Jun 1463 and proved on 02 Jul 1463[2], Alice was under the age of 25 and unmarried. Given that she was listed last of the three sisters it is probable Alice was the youngest of the three.
The data shown has no sources.