What does Reina mean?
The Spanish word 'reina' means 'queen', descending from Latin 'regina'. Also spelled Reyna. (A separate Hebrew/Yiddish name Reina meaning 'pure' exists; the Spanish 'queen' sense is the relevant one here.)
What does Renata mean?
The feminine of the Late Latin Renatus, 'reborn, born again' (re- 'again' + natus 'born'), a name adopted by early Christians to signify spiritual rebirth through baptism.