ST. PAUL, Minn. — A royal knighting in the middle of a bank — it’s a sample of the community relationships built by King Boreas’ Royal Guard. Throughout the year, they take part in 400 appearances and over 40 parades as the noble part of a St. Paul Winter Carnival tradition that dates back to the 19th century. The guard’s military-style precision is the antidote to the rough-and-tumble actions of the Vulcan Krewe, whose honorary membership included an entrance from a port-a-potty. Vincent Berger is this year’s guard captain. “The king’s guard protects the royal family from the Vulcans,…..