skos:altLabel | - King
- Nicholas
- Nikola
- Nicholas I
- '''Nikola I'''
- His Majesty the King of Montenegro
- King Nicholas
- King Nicholas I
- King Nicholas I Petrovich-Njegos
- King Nicholas I of Montenegro
- King Nicholas of Montenegro
- King Nicholas I
- King Nikola
- King Nikola I
- King Nikola I Petrovic-Njegos
- King Nikola I Petrović-Njegoš of Montenegro
- King Nikola I of Montenegro
- King Nikola Petrović
- King of Montenegro
- King of Montenegro, Nikola Petrović-Njegoš
- Montenegrin Prince Nikola Petrović Njegoš
- Montenegrin prince Nikola
- Nicholas I, Prince of Montenegro
- Nicholas of Montenegro
- Nicholas I of Montenegro
- Nicholas, Prince of Montenegro
- Nicola I
- Nicolas Petrovic
- Nikola I
- Nikola I Petrovic
- Nikola I Petrovic-Njegos
- Nikola I Petrović
- Nikola I Petrović-Njegoš
- Nikola I of Montenegro
- Nikola Petrovic
- Nikola Petrovic Njegos
- Nikola Petrović
- Nikola of Montenegro
- Prince / King Nikola I
- Prince Nicholas
- Prince Nicholas I
- Prince Nicholas of Montenegro
- Prince Nikola
- Prince Nikola I
- Prince Nikola I Petrović
- Prince Nikola Petrović
- Prince Nikola Petrović-Njegoš
- Prince of Montenegro
- Prince/King Nikola I of Montenegro
- prince Nicholas
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