Case C-851/19 P: Judgment of the Court (Second Chamber) of 15 July 2021 — DK v European External Action Service (Appeal — Civil service — Disciplinary proceedings — Disciplinary penalty — Determination of that penalty — Withholding of an amount from the pension — Criminal conviction and civil sanction before national courts — Compensation, in whole or in part, for non-material damage caused to the European Union — Lack of relevance of that compensation — Article 10 of the Staff Regulations of Officials of the European Union — Principle of equal treatment — Principle of proportionality)