One of the saddest chapters in the history of the Vanagi parish began in the autumn of 1944, following the arrival of the Red Army in Latvia. In Latgale, local resistance against the Soviet regime, communists, and their supporters ignited. At that time, Antons Juhņevičs (1905–February 4, 1947) served as the priest of the Vanagi parish. He was an exceptionally vivid personality, combining a sharp mind, deep patriotism, and profound faith in God. In his sermons, he openly called for resistance against the Soviet rule. This defiance and faith served as the driving force for him to join the National Resistance Movement and become one of its leaders. Later, Priest Antons Juhņevičs chose the codename Antons Vientulis - Monahus.

To hear this story and discover these historical testimonies, one must travel to Vanagi in the Upmala parish of the Preiļi municipality. Visitors will have the opportunity to tour the church and the parish house. In the former Vanagi Primary School, which now houses the Information and Artisan Center "Vanagi", guests can watch the 2014 docudrama "Codename Vientulis" (Segvārds Vientulis), directed by Normunds Pucis. In the film, historical figures are portrayed by several well-known Latvian actors, with a musical score composed by Rihards Dubra. It was the most-watched Latvian documentary film in 2014.

The school hallways feature a large-format photo exhibition detailing the making of the film and the film crew's stay at the Vanagi Primary School during shooting. Outside the parish house, visitors can taste an authentic national partisan meal—barley porridge cooked over a campfire. The tour also includes walking the partisan trails in the nearby forest right by the church.