Abstract
This paper extends UFO-L, a Legal Core Ontology (LCO) based on Robert Alexy's Theory of Constitutional Rights and grounded on the Unified Foundational Ontology (UFO). We present the first pattern of UFO-L's patterns catalogue and its application. The general idea is to use these ontological patterns to support the modeling of legal concepts in conceptual models of the legal domain. Moreover, our approach has the specific purpose of emphasizing the use of a relational perspective rather than a normative perspective of the Law.