Why is the Dutch royal family called the House of Orange?

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Tags

1. #dutch
2. #history
3. #royal
4. #disintegration
5. #under
6. #north
7. #family
8. #called
9. #netherlands
10. #feudal
11. #became
12. #independent
13. #counts
14. #predominant
15. #netherlandic
16. #nation
17. #orange
18. #important
19. #arles
20. #house
21. #dynasty
22. #sometimes
23. #kingdom