Can the properties in DataCite Metadata Schema specify the language of the metadata?

The DataCite Metadata Schema allows you to specify the language of certain properties. DataCite Members are encouraged to provide metadata in English, in addition to any other language that may be required by the funder or hosting organization.

The DataCite Metadata Schema supports language attributes for core properties. XML provides an xml:lang attribute that can be used on the properties Title, Subject, Rights, Description, and RelatedItem Title, as well as on the properties Creator, Contributor and Publisher for organizational names. This provides a way to describe the language used for the content of the specified properties.

The schema also provides a Language property (9) which is used to describe the language of the resource being shared.

More information in the DataCite Metadata Schema documentation.