Nizzo of Krems-Gars (or Rizzo) was a scion of the house of Kuenring. He is known for his father, Azzo of Gobatsburg.
He married a woman named Truta, fathered four children with her -- Hadmar I, Albero II, Dietmar, and Pelegrin of Zwettl -- and died before 1114.
Children Hadmar I of Kuenring, died childless on 27 May 1138 Albero II of Kuenring, died childless around 1163 Dietmar, born around 1098 and died around 1114, childless Pelegrin of Zwettl, died around 1166, Priest of Zwettl Abbey