Aranvor Naldwinn served as a Captain-General of the Queen's Guards of Andor in the latter 970s NE. He served Queen Morgase Trakand, apparently ably and well. He held the rank at the same time as Gareth Bryne; it is unclear why this should be the case.
During the Aiel War, Naldwinn assumed command of the 28,000 Andoran troops Queen Morgase sent to aid her erstwhile ally, King Laman Damodred of Cairhien. This contingent formed part of the Grand Alliance of nations which assembled outside Tar Valon to turn back the Aiel onslaught. Lord Aranvor commanded the Alliance on the third day of the Battle of the Shining Walls and was killed while leading his troops into battle.