7 events the sources record for this year, grouped by region.
What happened
China (2)
In the second month the emperor left the capital on a northern tour and reached Beijing in the third month. (History of Ming (Mingshi), Annals 明史 卷6 永樂七年)
When the former king was killed by a poisoned arrow fighting the king of Huamian, a fisherman avenged him, married the queen and became the old king. In the seventh year of Yongle the old king came to pay tribute and received the imperial favor. (Ma Huan, Yingya Shenglan (Overall Survey of the Ocean's Shores) 瀛涯勝覽·蘇門答剌國)
Southeast Asia (2)
On the 17th day of the 3rd month he ascended the throne at Chi La, with the era name Trùng Quang. (Đại Việt sử ký toàn thư 本紀卷之九 「己丑三年春二月，殺國公鄧悉及同知」)
In the seventh year of Yongle the emperor ordered Zheng He to bestow on the chief an edict, double-handled silver seals and robes, and to erect a stele fixing the territory; thus it came to be called the country of Malacca. After that Siam did not dare to invade. (Ma Huan, Yingya Shenglan (Overall Survey of the Ocean's Shores) 瀛涯勝覽·滿剌加國)
West Asia (1)
Atin, Mehmed and Musa, who had been in Ankara, flee to Spentiar of Sinope and with his help cross to Wallachia. (Doukas, History 19 (Bonn p.88))
Southern Europe (1)
Moses visits the Wallachian voivode Mircea and reveals his identity, and is allowed to come and go freely. The governors of the Danube frontier warn Suleiman. (Doukas, History 19 (Bonn p.88))