Possible Clues:

• Essential
• __ Tomé and Principe (African nation)
• Intro to Paulo or Pedro
• ___ Francisco (river through Brazil)
• Portugal's Palácio de ___ Bento
• Common word on a Portuguese map
• ___ Miguel (Largest of the Azores)
• ___ Gonçalo, Rio de Janeiro
• Prefix with masochistic
• Part of some Portuguese place names