It is not customary to celebrat the birthdays or jubell with other royal family in Monaco
It there would be Something it would be a celebrating with the people of Monaco like in 2015
In 1974, Prince rainier celebrated his 25t years of jubele with all the monegast, there was a big dinner in the stade Louis II with all the native monegash people, in 1999, for his 50 years jubele , there was a fest with the princely family on the place of the palace, no royals present
And this year with the economic crise because the virus, there will be no celebration