The countries' royals annually reviewed are as follows, with the key developments over the year outlined afterwards:
Existing hereditary monarchies: Great Britain, Norway, Denmark, Sweden, Netherlands, Belgium, Luxembourg, Liechtenstein, Spain, Monaco.
Former monarchies: Russia, Romania, Bulgaria, Greece, Albania, Serbia, Montenegro, Austria, Germany, Italy, Portugal, France.
2017
King Willem-Alexander of the Netherlands reveals that over
the past 21 years, including during his reign, he has regularly been
co-piloting commercial flights in secret.
The former King Michael of Romania dies aged 96, prompting widespread national mourning. His claim to the Romanian throne is continued by
his eldest child, Crown Princess Margareta of Romania. On the occasion of the
former King’s death, leading politicians publicly comment on the potential for
the monarchy to be restored in Romania.
In the midst of intense protests demanding recognition of
the independence of the region of Catalonia from Spain at the time of a
controversial referendum on the issue, King Felipe VI of Spain intervenes,
addressing the public and criticising those behind public demonstrations
for Catalan independence and rallying Catalans to remain within Spain.
As Queen Elizabeth II of Great Britain and Northern
Ireland reaches numerous milestones, including the oldest head of state in the
world, and first British monarch to celebrate both a Sapphire Jubilee and
Platinum wedding anniversary, there are more signs of a greater
transition of influence to her son and heir Prince Charles, with the Prince
leading the national Remembrance commemorations whilst the Queen watches from a
balcony.