Write SQL query to solve given problem: What is the most populated city of the 12th highest density country?. Keep the solution inside sql tag ```sql [SQL-Query] ```
SELECT T2.Name FROM country AS T1 INNER JOIN city AS T2 ON T1.Code = T2.Country WHERE T1.Name = ( SELECT Name FROM country ORDER BY CAST(Population AS REAL) / Area LIMIT 11, 1 ) ORDER BY T2.Population DESC LIMIT 1