Yes the female version of the name is Gustava. The female version was pretty popular in Sweden in the 19th century.
The name "Annee" is feminine.
The feminine equivalent of "lad" is "lass."
CountessThe feminine version of "count" is "countess". Rather than "Count [last name]", it is "Countess [last name]".
Yes, Francoise is the feminine form of the name François.
La Belgique is the French name for Belgium. It is a feminine noun which has no masculine.
Gustav Gavrin's birth name is Gustav Schwarz.
Gustav Sandgren's birth name is Gustav Emil Sandgren.
Gustav Mahncke's birth name is Gustav Theodor Mahncke.
Gustav Leonhardt's birth name is Gustav Maria Leonhardt.
Gustav Jonsson's birth name is Gustav Robert Jonsson.
Gustav Esmann's birth name is Gustav Frederik Esmann.
Jack Gustav's birth name is Gernot Gustav Fraydl.
Gustav Hintze's birth name is Gustav Hintze Holm.
I would suggest the middle name "Hans" for Gustav. It has a strong, classic sound that complements the traditional feel of Gustav.
Gustav Winckler's birth name is Gustav Frands Wilzeck Winckler.
Gustav Wiklund's birth name is Gustav Adolf Fingal Wiklund.
Prins Gustav's birth name is Christian Frederik Vilhelm Valdemar Gustav.