Dom Aleixo was born in
Ainaro, in 1886, under the name Nai-Seço. His cousin Nai-Cau was the leader of Suro and fought for the Portuguese in the
East Timorese rebellion of 1911–1912 against the bordering areas led by
Liurai Boaventura of
Manifahi. Aleixo also sided with the Portuguese during the conflict. He married Dona Maria Corte-Real. Maubisse rose up in rebellion against the Portuguese in August 1942, and Aleixo sent 350 men to fight against them. He fought against the Japanese during the
Battle of Timor, but his forces were pushed back from Suro to Hatu-Udo. Quei-Bere, chief of Foe-Ai-Lico and now aligned with the Japanese, separated Alexio from his men. On 5 May 1943, Aleixo's men were disarmed and Aleixo was captured. He fought the Japanese while in captivity and was killed by a sword. Those with him, including his children, also fought, but almost all of them were killed. Only three people survived. ==Legacy==