To which king belongs the Lion capital at Sarnath?

The Lion Capital of Ashoka is a sculpture of four Asiatic lions standing back to back, on an elaborate base that includes other animals. A graphic representation of it was adopted as the official Emblem of India in 1950. It was originally placed on the top of the Ashoka pillar at the important Buddhist site of Sarnath by the Emperor Ashoka, in about 250 BCE. The pillar, sometimes called the Aśoka Column, is still in its original location, but the Lion Capital is now in the Sarnath Museum, in the state of Uttar Pradesh, India.