Petar II Petrović-Njegoš
Petar II Petrović-Njegoš was born Radivoje "Rade" Petrović on in the mountain village of Njeguši, near Cetinje. His father, Tomislav "Tomo" Petrović (b. 1762–63), was a member of the Petrović clan of the Njeguši tribe of Katuni "nahiya". Njegoš's mother, Ivana Proroković, hailed from the hamlet of Mali Zalaz and was the daughter of Njeguši captain Lazo Proroković. There is no reliable information about her exact year of birth, but it is believed that she was about ten years younger than her husband. Tomo and Ivana had five children; their eldest son was Petar ("Pero"), Rade was their middle son and Jovan ("Joko") was their youngest. The couple's daughters were named Marija and Stana; Marija was married to a Montenegrin chieftain named Andrija Perović, the "serdar" (count) of Cuce, while Stana was married to Filip Đurašković, the "serdar" of Rijeka Crnojevića.
Ljubomir Nenadović
He graduated at gymnasium in Belgrade and began to attend lyceum. In period between 1844 and 1848 he studied at universities in Prague, Berlin and Heidelberg. After he returned to Serbia in 1848 he became professor at lyceum. During this period he befriended Petar II Petrović-Njegoš and years later wrote in his "Pisma iz Italije" (Letter from Italy) the experience of traveling with Njegoš in Italy and observing him as a ruler at the court in Cetinje. His narrative on Njegoš was published some twenty and forty years after Njegoš's death (1851).