Complex sentence: Serbian epic poetry agrees that King Vukašin was Marko's father and his mother was Jevrosima, sister of voivode Momčilo, (lord of the Pirlitor Fortress in Mount Durmitor, Old Herzegovina).
Split into simpler sentences: Serbian epic poetry agrees that King Vukašin was Marko's father. His mother in the poems was Jevrosima, sister of voivode Momčilo, the lord of the Pirlitor Fortress (on Mount Durmitor in Old Herzegovina).