Facts: - title: grand and zahumlje prince of serbia duke of duklja , travunija - reign: 1150 -- 1155 , 1162 -- 1166 -lrb- rascia -rrb- 1148 -- -- 1162 -lrb- duklja -rrb- 1153 -lrb- co-ruler of rascia -rrb- 1153 - mother: anna diogenissa - father: uros i - name: desa Based on these bullet points, write a short biography describing the life of desa -lrb- monarch -rrb- .
The answer to this question is:
desa -lrb- -rrb- was the serbian co-ruler from 1148 to 1153 , alongside his elder brother uros ii , grand prince of serbia ; the duke of duklja , travunija and zahumlje from 1149 to 1162 ; the grand prince of serbia from 1153 to 1155 , and again from 1162 to 1166 .