Question: Is the Spanish Mastiff a larger dog breed than the Pomeranian?
Context: The English Mastiff is a breed of extremely large dog (often known simply as the Mastiff) perhaps descended from the ancient Alaunt and Pugnaces Britanniae, with a significant input from the Alpine Mastiff in the 19th century.  Distinguishable by enormous size, massive head, and a limited range of colours, but always displaying a black mask, the Mastiff is noted for its gentle and loving nature.  The lineage of modern dogs can be traced back to the early 19th century, but the modern type was stabilised in the 1880s and refined since.  Following a period of sharp decline, the Mastiff has increased its worldwide popularity.  Throughout its history, the Mastiff has contributed to the development of a number of dog breeds, some generally known as Mastiff-type dogs, or, confusingly, just as "Mastiffs". The Mastín Español or Spanish Mastiff, is a giant breed of dog, originating in Spain, originally bred to be a guard dog whose specialized purpose is to be a Livestock guardian dog protecting flocks (and occasionally herds) from wolves and other predators.  The Mountain dog type has a heavier coat. A breed standard (also called bench standard or the standard) in the dog fancy is a set of guidelines covering specific "externally observable" qualities such as "appearance", "movement", and "temperament" for that dog breed.  Breed standards are not scientific documents, but are written for each breed by clubs of hobbyists called breed clubs for their own specific requirements.  Details and definitions within breed standards for a specific dog breed may vary from breed club to breed club and from country to country.  Dog breed standards are similar in form and function to breed standards for other domesticated animals. Mastiff type means a large molosser dog.  The term "mastiff type" has been used synonymously with the term "molosser".  For example, the bulldog breeds, the Great Dane, the mountain dogs, the pit bulls and even smaller dogs such as the Boston terrier, may be considered "mastiff types" in this broad sense.  The descriptive term, mastiff type, should not be confused with the breed, the Mastiff.  All breeds are individual and should be referred to by their breed name to ensure correct identification. The Japanese Spitz (日本スピッツ , Nihon Supittsu ) is a small to medium breed of dog of the Spitz type.  The Japanese Spitz is a companion dog and pet.  There are varying standards around the world as to the ideal size of the breed, but they are always larger than their smaller cousins, the Pomeranian.  They were developed in Japan in the 1920s and 1930s by breeding a number of other Spitz type dog breeds together.  They are recognized by the vast majority of the major kennel clubs, except the American Kennel Club due to it being similar appearance to the white Pomeranian dog, American Eskimo Dog and Samoyed Dog.  While they are a relatively new breed, they are becoming widely popular due to their favorable temperament and other features. The Alpine Mastiff is an extinct Molosser dog breed, the progenitor of the St. Bernard, and a major contributor to the modern Mastiff (through such dogs as "Couchez"), as well as to other breeds that derive from these breeds or are closely related to them.  M.B. Wynn wrote, "In 1829 a vast light brindle dog of the old Alpine mastiff breed, named L'Ami, was brought from the convent of Great St. Bernard, and exhibited in London and Liverpool as the largest dog in England."  William Cavendish, 5th Duke of Devonshire, is believed to have bred Alpine Mastiffs at Chatsworth House. The Perro de Presa Canario, A.K.A. the Canary Mastiff, is a large Molosser-type dog breed originally bred for working livestock.  The name of the breed is Spanish, means "Canarian catch dog", and is often shortened to "Presa Canario" or simply "Presa".  The breed is sometimes also called Dogo Canario, meaning "Canarian Molosser".  It is the animal symbol of the island of Gran Canaria. The Fila Brasileiro (] ) also known as the Brazilian Mastiff is a large working breed of dog developed in Brazil.  It is known for its superb tracking ability, aggressiveness and an unforgiving impetuous temperament.  When a Brazilian Mastiff finds its quarry, it does not attack it, but rather holds it at bay until the hunter arrives.  Owing to these qualities, the Brazilian Mastiff is used as a guard dog, as a shepherd dog for herding livestock and as a hunting dog for tracking and controlling large prey.  When slavery was legal in Brazil, the Brazilian Mastiff was used to return fugitives unharmed to their slave masters.  This breed has been banned in many countries because of its temperament and potential for aggression. The Himalayan Sheepdog, also referred to as the Bhote Kukur or Bhotia, is a livestock guardian dog that originated from Nepal.  This mountain dog breed is closely similar to Indian Mastiff and the Tibetan Mastiff and may be related to the long-haired Kinnaur Sheepdog of Tibet.  Naturally, Himalayan Sheepdogs enjoy outdoor lifestyles and are rarely seen beyond the regions of India and Nepal.  As a powerful and robust breed, the Himalayan Sheepdog is mainly used for herding purposes.  The Himalayan Sheepdog is regionally popular as both a loyal companion as well as a working dog. The Pomeranian (often known as a Pom or Pom Pom) is a breed of dog of the Spitz type that is named for the Pomerania region in Germany and Poland in Central Europe.  Classed as a toy dog breed because of its small size, the Pomeranian is descended from the larger Spitz type dogs, specifically the German Spitz.  It has been determined by the Fédération Cynologique Internationale to be part of the German Spitz breed; and in many countries, they are known as the Zwergspitz ("Dwarf-Spitz").
Answer: yes