Medieval Gatehouse (more pictures in the comments) : r/lego
Amazon.com: HMNY Medieval Castle Building Set, MOC-138840 Black Falcon Castle Barbican Gatehouse Building Kit, Large Medieval Architecture Building Blocks Set for Adults, Compatible with Lego (1977 Pieces) : Toys & Games
Amazon.com: LEGO The Gatehouse Raid : Toys & Games
LEGO MOC The Gatehouse 31120 Medieval Castle Alternate Build (40cm tall) by re-bricked | Rebrickable - Build with LEGO
Oz Brick Nation: LEGO Castle 70402: The Gatehouse Raid Review.
The village and its gatehouse - The Brothers Brick | The Brothers Brick