The oldest known European Yew is the Llangernyw Yew in the Churchyard of Llangernyw village in North Wales which is estimated to be between 4,000 and 5,000 years old . The oldest known European Yew is the Llangernyw Yew in the Churchyard of Llangernyw village in North Wales , which is estimated to be between 4,000 and 5,000 years old .