Porky

Porky was the 4th dog to die in Stampy's Lovely World. He was only in 1 video, Episode 23. Stampy said that Porky was the fat one. His grave is in Stampys slime farm, where he died. Porky has a respect chest with porkchops in it.

Death
Stampy took Porky out of Stampys doghouse in episode 23. At the moment stampy was giving his viewers a tour of recently added features in Stampy's Lovely World. When stampy went to his Slime Farm, porky fell down the hole leading to the farm itself. Porky landed on a stone block, and died.

Trivia
Porky is the second (or the third) Dog to die of fall damage in Stampy's Lovely World. The first confirmed dog to die of fall damage was Stampygoodnose. Gregory might've been launched in the air by the arrow from the skeleton that shot him.