Complex sentence: The government of the islands were under a governor-general, whose jurisdiction extends to the other Danish colonies of the group, however, because the islands formerly belonged to Great Britain consequently the inhabitants were English in customs and in language.
Split into simpler sentences: The government of the islands were under a governor-general, whose jurisdiction extends to the other Danish colonies of the group. However, because the islands formerly belonged to Great Britain consequently the inhabitants were English in customs and in language.