First Minister Carwyn Jones has appointed Theodore Huckle QC to the position of counsel general-designate for the Welsh Government.
Mr Huckle was born in Blaenavon and educated in Pontypool.
As counsel general he will be the senior legal voice for the Welsh Government. He is a senior lawyer, who was awarded silk this year, and works in the Wales and Chester circuit.
Mr Huckle said it was a "privilege" to be appointed.
The first minister said he was "delighted" to welcome Mr Huckle to his government team.
"Theodore has a distinguished legal career, and his expertise will prove invaluable as we use our enhanced legal powers to deliver on our commitments for the people of Wales," he said.
Mr Huckle added it would be "an exciting time for Wales when the National Assembly will be exercising its new law-making powers for the first time."