Sir Dudley Marjoribanks, also known as Lord Tweedmouth, is credited with developing the Golden Retriever breed of dog in the late 19th century. Lord Tweedmouth was a British nobleman who lived in Scotland and was an avid sportsman and breeder of dogs. In 1894, he developed the Golden Retriever by crossing a yellow retriever with a Tweed Water Spaniel, with the goal of creating a breed that would be an excellent companion for humans and would also be able to retrieve game in the field.

The Golden Retriever is a medium to large-sized breed of dog with a thick, golden-colored coat and a friendly, outgoing personality. They are known for their intelligence, trainability, and affectionate nature, and they are often used as service dogs, therapy dogs, and as family pets. Golden Retrievers are also highly prized as sporting dogs due to their ability to retrieve game in the field, and they are often used as hunting dogs and in field trials.