Early Kings of Norway by Thomas Carlyle

The new King Olaf, his brother Magnus having soon died, bore rule in Norway for some five-and-twenty years. Rule soft and gentle, not like his father's, and inclining rather to improvement in the arts and elegancies than to anything severe or dangerously laborious. A slim-built, witty-talking, popular and pretty man, with uncommonly bright eyes, and hair like floss silk: they called him Olaf _Kyrre_ (the Tranquil or Easygoing).

The ceremonials of the palace were much improved by him. Palace still continued to be built of huge logs pyramidally sloping upwards, with fireplace in the middle of the floor, and no egress for smoke or ingress for light except right overhead, which, in bad weather, you could shut, or all but shut, with a lid. Lid originally made of mere opaque board, but changed latterly into a light frame, covered (_glazed_, so to speak) with entrails of animals, clarified into something of pellucidity. All this Olaf, I hope, further perfected, as he did the placing of the court ladies, court officials, and the like; but I doubt if the luxury of a glass window were ever known to him, or a cup to drink from that was not made of metal or horn. In fact it is chiefly for his son's sake I mention him here; and with the son, too, I have little real concern, but only a kind of fantastic.