Afterwards he attended Cardiff High School , and later went to the University of Bath to study economics .
Griffiths was born in Cardiff and grew up in the suburb of Llanrumney , where he attended Bryn Hafod primary school .
Afterwards Griffiths attended Cardiff High School , and later went to the University of Bath to study economics .
Griffiths was born in Cardiff and grew up in the suburb of Llanrumney , where he attended Bryn Hafod primary school .