Fairly certain this is a Peacock - but sadly I didn't get a photo with its wings open. It certainly seemed to have the distinctive Peacock colourings as it landed
Press "i"
Butterfly Atalanta
https://www.inaturalist.org/observations/210813750/edit
https://www.inaturalist.org/observations/210813623
Plants
False Hawkbit Urospermum picroides
Grasses Gierst
Grasses Baardgras
Grasses
https://www.inaturalist.org/observations/210813750/edit