Dietrich I Kleve Van Valken Duke
Dietrich I was born about 1184.  He died in 1228.  He was buried in 1228.

 Isalde Of Limburg Princess
Isalde was born about 1188.

 Agnes Kleve Van Valken
Agnes was born about 1210 in Heinsberg.  She died in 1267.  She was buried in 1267.