SIEGFRIED I von PEILSTEIN

SIEGFRIED I was born before 1159.¹   SIEGFRIED I's father was KONRAD der RAUHE von PEILSTEIN and his mother was ADELA von WEIMAR-ORLAMUNDE.  His paternal grandparents were FRIEDRICH II von TENGLING and MATHILDE von LECHSGEMUND.  He was an only child.  He died after 1174.¹ 

He had a biological daughter named IRMGARD.