useless trivia: What Word Means: A Lesser Rule?

Questions

What name was given to a small gaiter, worn over the instep?

Princess Victoria, Duchess of Vastergotland, is the heir presumptive to the throne of which European country?

Proposed in 1944, a 'spat' was a unit of distance equal to 1012 metres (ten to the power twelve metres), for use in what science?

Which breed of large dog, used by German nobility in the 17th Century to hunt boar and stags, is known there as the Deutsche Dog?

Which flying mouse, a cross between Superman and Mickey Mouse, appears in over seventy short cartoons in the Terrytoons series?