The siege of Halicarnassus was fought between Alexander the Great and the Achaemenid Persian Empire in 334 BC.

When Pixodarus died, Persian King Darius had appointed Orontobates satrap of Caria, which included Halicarnassus in its jurisdiction.

[2] Alexander leading his army through the gates, ordered crews to extinguish the blazing structures and issued a decree that the citizens should not be harmed.

[4] After the capture of Halicarnassus Alexander sent his newly married soldiers home to spend the winter with their families.

By putting Ada, who felt very favorably towards Alexander, on the throne, he ensured that the government of Caria, as well as its people, remained loyal to him.