[1][2] With Pavao's and Frankopan family's help, the king Matthias tried to consolidate his power in the areas southern of mount Velebit, where Republic of Venice and Ottoman empire posed threat.
[2] Pavao Špirančić was born in the first half of the 15th century in Croatia which was in that time under the rule of Hungarian king.
[1][2] Špirančić tried to gain support of Republic of Venice and make them an ally against Ottoman empire which posed great threat for his territories and Hungarian kingdom.
His attempts were unsuccessful, mainly because of his conquest of city of Klis and surrounding towns and areas, which made him a threat for Venetians and some other Croatian nobles who had their possessions there.
Last Bosnian king Stephen Tomašević was killed and his wife Marija fled to the Croatian littoral where she was captured by Pavao who was enemy of her husband.