Abstract
This paper analyses the question of how to perceive the traditional theoretical concept of state sovereignty vis-á-vis European integration. Within the European project we face the paradox of having two authorities claiming autonomy and dominance. It is undisputable that the European Union is behaving like an autonomous public power - the new sovereign of its kind. But at the same time the Member States also maintain their sovereign statehood. This duality cannot be comprehended together with the old characteristics of sovereignty, which accepts only one holder of this feature. To reconcile the phenomena of European integration and the concept of sovereignty, we must shift into new definitions of the latter. This paper argues in favour of the acceptation of a shared sovereignty concept.