Duke Heinrich IV of Limburg
Duke Heinrich IV of was born in 1204.

 Princess Irmgard of Berg
Princess Irmgard of was born in 1205.

 Duke Adolf VII of Limburg-Berg
Duke Adolf VII of was born in 1222.  He died at the age of 47 on April 22nd, 1269.

 Duke Walram V of Limburg-Berg
Duke Walram V of was born in 1225.