Also , ZANGIDS OF AL-JAZIRA: Sanjarshah. is correct , that is the Family ( Mardin is in Al Jazira )
Al Jazira is Jazirat ibn Omar جزيرة ابن عمر ( That is why part
of that big provence , still
called Al Jazira in Syria
Same Family name used on asearch , maybe Sam did not want to confuse the guy.