Simplify the following text for a Grade 5 native English-speaking person.
Original: ConstanÅ # a is the largest Romanian seaport on the Black Sea and the largest city in Dobruja . It is also the capital of ConstanÅ # a County and one of the biggest cities in Romania .
Simplified: The Port of ConstanÅ # a is the largest on the Black Sea and the fourth largest in Europe .