Portrait of an old man with silver-gray hair and beard in embroidered tunic and velvet cape

Prompt

Portrait of an old man. Long, wavy, silver-gray hair. Big silver gray beard. He wears a tunic of richly embroidered fabric, mainly in green and gold. Velvet cape, worn on one shoulder, with a silk lining. He has a look that reflects his intelligence. He is sit on a chair in front of a desk where he is writing with a quill on a book. There is an old library in the background. From the 11th century Redraw