Gunzel III Count of Schwerin
Gunzel III Count of was born in 1204 in Slawno,Koszalin,Poland.  He died at the age of 70 in 1274.

 Margarethe of Mecklenburg Princess
Margarethe of was born about 1204 in Schwerin,Mecklenburg.  She died after October 23rd, 1274.

 Nikolaus I Count of Schwerin
Nikolaus I Count of was born in 1240 in Schwerin,Mecklinburg,Schwerin,Germany.  He died at the age of 83 in 1323.