Daughter of Christian Fredrik Ficker, a musician at Kungliga Hovkapellet, and sister of the opera singer Mathilda Gelhaar, she was enrolled in Dramatens elevskola in 1830.
She was married to the second concert conductor at the Kungliga Hovkapellet, violinist Theodor Adolf Eduard d’Aubert.
Since 1773, when the Royal Swedish Opera was founded by Gustav III of Sweden, the Kungliga Hovkapellet has been part of the opera's company.
Mathilda was daughter of the musician Ficker at the Kungliga Hovkapellet, grandchild of the famous Swedish actor Andreas Widerberg and niece of the primadonna Henriette Widerberg.