Sharaz revealed the name the new parents had chosen on Instagram, and shared photos of their baby for Easter.
“The best kind of Easter egg we’ve ever received,” David Sharaz wrote.
“Baby Frederick Leon Sharaz’s first Easter.”
Higgins replied, “Little sweet dumpling”.
The photos include Higgins feeding the baby in Noosa, and the couple posing together with him.
The baby was born last month.
They returned to live in Queensland from the South of France.
They now live the Noosa suburb of Sunshine Beach.
Lehrmann has denied that any sexual activity occurred between himself and Higgins, and has appealed the judge’s findings against him.
Higgins, who has fought to change how women in politics are treated in the wake of her experience.