What were Hitler's two dogs' names?

In 1921, Hitler had a dog named Prinz. He purchased another German Shepherd shortly after and named him Muckl. During WWII, he had the well-known German Shepherd named Blondi, and before Blonda he owned a mother and daughter set of Shepherds, both of whom were named Blonda.

The person who answered before me was mistaken by the named Rolf and Ralf. Those were the names of Haputsturmfuhrer Amon Goeth's dogs. (He was the Kommandant of the Plaszow concentration camp in Poland from 1942-1944.)