Ptah was the main god of Memphis, the capital of Egypt for much of its history. He was the god of artists, craftsmen and masons. The name of his temple in Egyptian was Hwt-ka-Ptah, which the Greeks took as the name of the country - Hikuptah became Aiguptos, or Egypt, which is what we call it today.
Ptah is shown with a blue skull-cap and wrapped up like a mummy. He holds a was sceptre, standing for power, and often also an ankh and a djed, which mean life and stability.
Ptah's wife was Sekhmet, or Bastet, and his son was the lotus flower god Nefertum.