Silver Jubilee marks a 25th anniversary.
The anniversary celebrations can be of a wedding anniversary, the 25th year of a monarch's reign or anything that has completed or is entering a 25-year mark.
Note: This list includes various reigning princes (by various titles) of petty states in Germany and elsewhere, who do not merit the designation "royal".
In India and Pakistan, a silver jubilee film is commonly described as a movie shown continuously in cinemas in one city for 25 straight weeks without any interruptions.
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