Ada, Countess of Holland

Ada (c. 1188 – 1234/37) was Countess regnant of Holland between 1203 and 1207, ruling jointly with her husband, Louis II of Loon.

[1] Ada was the only surviving daughter of Count Dirk VII of Holland and his wife Adelaide of Cleves.

Ada married Count Louis II of Loon to strengthen her position.

William had to accept Louis and Ada as count and countess at a treaty of Bruges in 1206.

Their reign was short-lived, since Emperor Otto IV regarded William to have more right to the title Count of Holland in 1208.