37For such a refusal to be capable of undermining the effectiveness of Union citizenship, there must therefore exist, between that third-country national and the Union citizen who is a family member, a relationship of dependency of such a nature that it would lead to the Union citizen – unless the said national is recognised as having of a right of residence within the territory of the Union – being compelled to accompany that national and to leave the territory of the European Union as a whole (see, to that effect, judgment of 27 February 2020, Subdelegación del Gobierno en Ciudad Real (Spouse of a Union citizen), C‑836/18, EU:C:2020:119, paragraph 40 and the case-law cited).
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