'Yorkshire Terrier' won the bronze medal in the Champion Beer of Britain competition held at the Great British Beer Festival in 2000, and the silver medal in the Society of Independent Brewers North Beer competition in February 2003.Centurion's Ghost Ale, which is 5.4% alcohol by volume, is York Brewery's strongest beer and is named after an incident when an apprentice plumber saw Roman soldiers marching through the cellar of Treasurer's House in York.