The successor of Ulrich II, Count of East Frisia was born in what place?
SELECT DISTINCT ?uri WHERE { <http://dbpedia.org/resource/Ulrich_II,_Count_of_East_Frisia> <http://dbpedia.org/property/successor> ?x . ?x <http://dbpedia.org/property/placeOfBirth> ?uri  . }
Ulrich_II,_Count_of_East_Frisia