[6] Johansson married the then-Tengku Mahkota (Crown Prince) of Kelantan Tengku Muhammad Fa-iz Petra on 19 April 2019 at Istana Balai Besar, Kota Bharu, Kelantan.

[7] She gave birth to their first child and eldest son, Tengku Muhammad Johan Petra, on 17 July 2023.

[8] As a commoner who became consort to a prince and senior member of the royal family, she was granted the honorific form of address as Che Puan (glossed as "Lady") and the style of Yang Berbahagia (translated as "Her Gracious").

[9] She was previously bestowed upon her the title Che Puan Mahkota of Kelantan (equivalent to the Crown Princess) by her brother-in-law, Sultan Muhammad V.[10] She was styled as Her Highness Che Puan Sofie Louise Johansson Petra, Che Puan Mahkota of Kelantan effectively from 2 August 2022 until 4 January 2024.

[11] The full title and style of Che Puan Sofie Louise is: Her Gracious Che Puan Sofie Louise Johansson Petra, S.P.M.K.