Judgment_paragraph 45 · Proceedings brought by HR (C-512/17)

45Accordingly, in a situation where such an infant lives with its parents on a daily basis, it is necessary, in particular, to determine the place where the parents are permanently present and are integrated into a social and family environment. In that regard, it is necessary to take into consideration factors such as the duration, regularity, conditions and reasons for their stay in the territory of the different Member States concerned, and the family and social relationships maintained by them and by the child in those Member States (see, to that effect, judgment of 22 December 2010, Mercredi, C‑497/10 PPU, EU:C:2010:829, paragraphs 55 and 56).