What rights does the landlord have if property with a priority right is removed from the leased land without their knowledge or consent? 
The landlord has the right to follow the encumbered property if it is removed without their knowledge or consent, given that there are not enough remaining assets on the land to secure the priority rights. However, this right does not supersede the rights of third parties acting in good faith over the assets. The priority right will still be valid for a period of three years from the day the property is carried away, if the landlord places an attachment on the property within thirty days of its removal.