Rick / Jan
Afaik the distinction boys name / girls name has no bearing on whether the ships are chartered or not. All (or most) of the MSC 18,000 teu ships will be chartered from varous owners, such as BoComm Leasing and MSFL. However, sice they are long-term chartered on bareboat/drylease terms, the ships will be managed by MSC itself. Hence the names. Time chartered MSC vessels under third-party managment usually have geographic (city, country, river, etc) names - with some well-known exceptions.