Professional equestrian Georgina Bloomberg, 30, is pregnant with her first child.

This will make her father, New York City mayor Michael Bloomberg — currently the 13th richest person in the world with a wealth estimated at $27 billion — a first-time grandfather.

Georgina's rep told the New York Post's Page Six, “Georgina and her boyfriend are excited to be expecting a baby this winter. Her entire family has been incredibly supportive.”

The father is reportedly Argentine equestrian Ramiro Quintana, 36.

The mayor's spokesman, Marc LaVorgna, told Page Six, "He is thrilled and can't wait to meet his first grandchild."

Congrats to Georgina and the sure-to-be-pampered baby!

Source: Page Six