This page explains in detail the interactions between the Castlevania series and the Zelda series.
Castlevania: Lords of Shadow[]
October 5, 2010
One of the collectable Brotherhood Knight Scrolls found in the Enchanted Forest, states that there once was a large tree called "The Great Dekuh", and that people believed it to be alive and to protect the forest with its magical power, but that it was cursed by the Dark Lords reducing it to a dead stump. This is clearly a reference to the Great Deku Tree from The Legend of Zelda: Ocarina of Time and The Wind Waker. In the former it was also killed by a curse.
License[]
The creators of Castlevania: Lords of Shadow held no right over Nintendo's Zelda, but they only included a minor reference to the games.