In this publication from 1951, titled “istorijski zapisi”, we can read of a bandit attack by Montenegrins from the regions of Gluhi Dol, Boljevic and Limljani who attacked the Catholic village of Zupce in Albania in 1851. The assault failed and several Albanians and Montenegrins were killed. The remaining bandits then cut off the heads of the dead Catholic Albanians and brought them to Cetinje where they saught approval, but were not rewarded by the authorities, stating the bandits had murdered Christians.

Cited:

“With the intention of robbing them” on September 30, 300 Montenegrins from Gluhi Dol, Boljević and Limljani broke into the Roman Catholic village of Zupce in Albania, but the latter “resisted and repelled the attack with their own hands”. In the skirmish, “two Montenegrins and two Zubčani died, and a third Montenegrin was mortally wounded”, while the Montenegrins succeeded and “cut off the heads of the killed Albanians, and seized the weapons from one of them”. When the attackers came to Njegoš in Cetinje, “to whom the heads of these two killed Christians were brought, he did not want to receive them, nor did he reward those who brought them, disapproving of attacks on the villages of the Christians.”

Reference

https://istorijskizapisi.me/wp-content/uploads/2021/01/Istorijski-zapisi-1952-OCR.pdf