The trio were put up for eviction after receiving the most votes in this afternoon's (September 2) fifth round of nominations.
The results were confirmed on the official Channel 5 website.
It is the second time that Prince Lorenzo has been nominated, while Martin and Julie face the public vote for the first time.
The eviction will take place on Wednesday evening (September 5), with voting lines opening later tonight.
Danica Thrall and Samantha Brick were evicted from the house on Friday (August 31).
Julie may face disciplinary action from Big Brother after discussing nominations with MC Harvey.