E. Cobham Brewer 18101897. Dictionary of Phrase and Fable. 1898.
Olaf or Olave (St.).
The first Christian king of Norway, slain in battle by his pagan subjects in 1030. He is usually represented in royal attire, bearing the sword or halbert of his martyrdom, and sometimes carrying a loaf of bread, as a rebus on his name, which in Latin is Holofius or Whole-loaf. (Born 995.)