From Latvian Surname Project
Kalsnava (German: Caltzenau) was an estate in central Latvia, located in Kalsnava parish. The exact year of the estate's founding is not known, but the manor house is believed to have been built in the mid-16th century, though it no longer exists today. Some of the subsidiary peasant farms still survive.
The surnames found in the 1826 revision list for Kalsnava, written as they appear in the document:
The 1826 revision list is one of the earliest sources for the surnames of Kalsnava.