He is married to Aleidis van Bemelen.
They got married
Child(ren):
RUTGER von Merheim (-by 1212). m ALEIDIS van Bemelen, daughter of ---.
Rutger & his wife had six children:
HERMANN von Merheim
WALTGER von Merheim
DIETRICH von Merheim
BEATRIX von Merheim (-after 1242).
HEILWIG von Merheim .
daughter Nn
https://fmg.ac/Projects/MedLands/LIMBURG.htm#BeatrixMerheimMGerhardWassenberg