Unidentified irregular flower - dead-nettle like

Unidentified irregular flower - dead-nettle like

Observation - Unidentified irregular flower - dead-nettle like. Description: Originally ID-ed as a Red Dead-nettle however I could not be sure of this due to the white stripe which can be seen on each leaf. Maybe a hybrid? The individual species were quite short in height and flowered in April. The species were growing beneath Hon

Originally ID-ed as a Red Dead-nettle however I could not be sure of this due to the white stripe which can be seen on each leaf. Maybe a hybrid? The individual species were quite short in height and flowered in April. The species were growing beneath Honesty. I have also spotted this same species with white stripes on the leaves in my neighbours garden growing amongst other wildflowers.