Monika Maria Roberta Antonia Raphaela
Michaela Maria Madeleine Kiliana Elisabeth
Gabriela Maria Charlotte Felicitas Elisabeth Antonia
Walburga Maria Franziska Helene Elisabeth
Karl Thomas Robert Maria Franziskus Georg Bahnam
Paul Georg Maria Joseph Dominikus
Three of the daughters were given the name "Elisabeth" - maybe in memory of Empress Elisabeth or Princess Elisabeth zu Sachsen-Meiningen, Regina's only sister, who died aged 3 months.
Georg was the name of Regina's father.
And there is the name "Robert" / "Roberta" which could be chosen in memory of Robert Duke of Bourbon-Parma, Empress Zita's father. Gabriela and Monika were called "Antonia", too, which makes me think of Antonia Duchess of Parma, Zita's mother.