** The Great Dane is a large German breed of domestic dog (Canis lupus familiaris) known for its enormous body and great height. The German name of the breed is Deutsche Dogge, or German Mastiff.
*** The Great Dane is one of the world's tallest dog breeds. The world record holder for tallest dog was a Great Dane called Zeus (died September 2014; aged 5), who measured 112 cm (44 in) from paw to shoulder. Great Danes are known for seeking physical affection from their owners.
More info: https://en.wikipedia.org/wiki/Great_Dane
** Old English Sheepdog, is a large breed of dog which was developed in England from early herding types of dog. The Old English Sheepdog can grow a very long coat, with fur covering the face and eyes. Obsolete names of the breed include Shepherd's Dog and bob-tailed sheep-dog. It is still nicknamed Bob-tail (or Bobtail) because historically, the tail was traditionally docked in this breed.
More info: https://en.wikipedia.org/wiki/Old_English_Sheepdog
** The Rottweiler is a steady dog with a self-assured nature, but early socialization and exposure to as many new people, animals, and situations as possible is very important in developing these qualities. The Rottweiler also has a natural tendency to assert dominance if not properly trained.
More info: https://en.wikipedia.org/wiki/Rottweiler