Woren Isaal was the Chief of State and President of the New Republic by 9 ABY. During the Third Battle of Coruscant, he was unable to escape along with the rest of the New Republic Senate as a result of the Imperial blockade. When the siege came to a full-blown offensive, Isaal was holed up within the Imperial Palace with prominent Senators. He would be severely wounded by Imperial troops, and later killed. From SW1ki, a Wikia wiki.