Queen of Spain Fritillary

I believe that the photos below of a fritillary sp butterfly show a Queen of Spain Fritillary (Isoria lathonia). If anyone can confirm, please let me know. Although quite rare in the UK (and restricted to the south-east of England), these lovely butterflies are relatively common in Scandinavia, apparently. I took these images this morning at around 0730 near Jersie Strand as it was basking in the early morning sun. This is the first time I have knowingly seen a QoS Fritillary (an indication that I haven't given butterflies enough attention over the years!).