Complex sentence: Whereas Sigurd made Norway known abroad, Eystein worked for economic and cultural progress in Norway constructing several churches, Munkeliv monastery in Bergen, a port in Agdenes and hostels for travellers.
Split into simpler sentences: Whereas Sigurd made Norway known abroad, Eystein worked for economic and cultural progress within Norway. Eystein constructed several churches, Munkeliv monastery in Bergen, a port in Agdenes and hostels for travellers.