The applicant acquired Austrian nationality in 1995 and renounced her former Turkish nationality in 1996 as a condition for retaining the Austrian nationality. In 2018 the Austrian authorities declared that she has no longer been an Austrian national since 1997 as it appeared that she voluntarily re-acquired her Turkish nationality at that time, which is a ground for automatic loss of Austrian nationality. The Court set aside the determination of loss of Austrian nationality as it did not carry out a proportionality test on the basis of the Tjebbes judgment.
The applicant naturalised in the Netherlands, after having derived his legal residence from being a partner of a Dutch resident. His naturalisation was later withdrawn, as it appeared he has concluded a marriage and fathered a child with another person in Egypt while still deriving residence rights from his relationship in the Netherlands. The Court confirmed the legality of withdrawal, despite the applicant becoming stateless as a result.