According to Sakcinski, Selnički was born in Selnica near Konjšćina in 1553 in a family which is a branch of Turopolje nobility.
[2] When Serb settlers came to Habsburg military frontier (in modern-day Croatia) they were settled on the land which remained vacant for more than 40 years.
[5] In 1598 Selnički received information that emperor Rudolf was going to grant Serbs privileges which would guarantee their status of people free from their feudal obligations.
[6] Furthermore, Selnički actually was the initiator of the "Vlach question" in Croatia with his intention to impose his feudal authority over Serbs, populated a year earlier on his estates by Varaždin general Sigismund.
[7] In July 1599 Selnički requested that Serbs (Vlachs) populated a year before on the territory of his estates should not be given any privileges.