This obituary is part of a series about people who have died in the coronavirus pandemic. Read about others here.

MANILA — Heherson Alvarez,who helped lead a campaign against the brutal regime of the Philippine dictator Ferdinand Marcos and then went on to serve in the national legislature after returning from exile in the United States, died on Monday in Manila. He was 80.

The cause was complications of the coronavirus, said Joey Lina, a former colleague in Congress.

Mr. Alvarez’s wife, Cecile Guidote-Alvarez, an artist who was also active in the anti-Marcos movement, contracted the virus as well. She was reported to have responded better to treatment after the couple were taken to a Manila hospital last month.