Kingdom of Daventry (unofficial)

King's Quest II: Romancing the Stones
Daventry was founded by the immortal Legenimor (according to KQ2 (AGDI)). If reconciled with The Silver Lining, using both sets of information, immortal Legenimor ruled for about 600 years before giving up his immortality.

Castle Daventry is back in its original location as seen in King's Quest 1.

King's Quest ZZT
In the non-canon King's Quest ZZT series, the Island of Daventry is greatly inconsistent with how it is seen in the official lore though somewhat similar to the KQ3 charts and the King's Quest Companion, 1st Edition maps. In the game Daventry is a continent located in a world known as King's Quest, it lies south of the Island of Tamir, and east of the Island of Llewdor. The eastern part of the island is comprised of the Aberian Desert, while western part of the island is the Kingdom of Daventry. Between Castle Daventry and the Aberian Desert is the Elven Village of Dhurgei. North of the Kingdom of Daventry floating above the northern reaches of the kingdom is the Andropodia Uplands.

The designers of King's Quest ZZT have the characters within the game refer to the world of Daventry as "King's Quest".

King's Quest 3 Remake
Daventry's layout in the King's Quest 3 remake is inconsistent with how it was in the original King's Quest 3. However, certain screens bare resemblance to locations seen in Daventry in King's Quest I (remake) and V. When Gwydion comes down from the mountain he first comes down above the Door into Mountain. To the north was a burnt woodland, although he could head in that direction there was nothing that interested him. To the south was a great chasm likely caused by an earthquake and fallen bouldes. To the west was the Ancient Well filled with boulders the west and south was blocked by a cliff wall of stone. To the north was the cottage of a gnome near a dried river moat to its west. A wooden bridge crossed the moat. The path beyond lead to a hill overlooking the valley where Castle Daventry was located (as seen in KQV). Paths lead down to the castle's empty moat and its closed gate. A large boulder blocked the path to the western edge of the castle, however it was possible to head east along the wall, reaching a stone bridge that crossed eastern section of the moat. Nothing of interest lied beyond.