Declaring war on Gwynedd , Pryderi and his men march north .
Declaring war on Gwynedd , Pryderi and his men fight a battle between Maenor Bennardd and Maenor Coed Alun .
Declaring war on Gwynedd , Pryderi and his men march north and fight a battle between Maenor Bennardd and Maenor Coed Alun .