Person · 1972 CEJakko Jan LeeuwanghAlso known asЛеуванг, Якко ЯнЯкко Ян Леувангجاكو جان ليوانجarchival plate · Jakko Jan Leeuwangh · placeholderThis entry is a stub. The Library is awakening — a longer account is being written.Connected to4 links to entries not yet ingested in the Library.