Facts
The daughter [C.] , born in 2013, is the daughter of [A.] (appellant) and [B.] (respondent 1). The parents were never married. By decision of 9 June 2016, the Child and Adult Protection Authority (KESB) of the Canton of Basel-Stadt granted the joint parental responsibility for their child to [C.] 's parents.
On 19 October 2016, [C.] initiated maintenance proceedings against [A.] before the Civil Court of the Canton of Basel-Stadt. The father made applications concerning the other child-related matters. By decision of 18 September 2019, the Civil Court ruled that [C.] is under the alternating custody of her parents and the parental care shares are 50% each.
[B.] appealed to the Court of Appeal of the Canton of Basel-Stadt. By decision of 6 May 2020, the Court of Appeal decided that for [C.] 's care, the father is responsible every two weeks from Wednesday noon after school until the following Monday morning before school, and the mother is responsible for the remaining time. [C.] spends the school holidays half with the mother and half with the father.
Considerations
The Federal Supreme Court partially upholds the appeal. It orders that [C.] is to be placed under the alternating custody of her parents, with the child's domicile to be determined at the mother's. Furthermore, the child allowance credit is to be divided equally…