Argynnis aglaja - Conservation status (Denmark): Endangered (EN) - High risk of extinction in the wild

In my sister's garden, I just was there to see all the butterflies in her butterfly bush and this was one of them.

Markperlemorsommerfugl (Argynnis aglaja) 

The species is the most widespread fritillary in Europe

Previously, this butterfly was called common fritillary

In present day this butterfly is rare

Wikipedia

The dark green fritillary 

(Argynnis aglaja) is a butterfly of the family Nymphalidae. The insect has a wide range in the Palearctic ecozone