Neufeld family may descend from Nawfal ( Neufel ) son of Menáp son of Kostai - meaning Kosta-Bar , the brother-in-law of Héródés - ,founder of Mekka in Arabia that is in Nabataia four generations before Muhammed,the prophete and author of Kor'an.
Idumaians parted from Nabataia as a result of some differences in opinion and became followers of the law of Iudaia after. As in this family of Mekka names used in Nabataian royal family - like Aamir,Harith - also occur,it is likely they like the left ones also descended from Bin-Dusara son of Alexander ,founder of the ruling family in Arabia and in Parthia and elsewhere.
As menápi tribe created Luxemburg,it is no wonder that his great-great-grandson,the son of Argabed-Leh was beside being called Muhammed from the birth also named Abu'l-Kasem that is to say Ap-Bur-Luk'sem.
He was seemingly in Europe titled therefore from Luxemburg and was indeed called Sigmond too meaning in speedy pronounciation Sheikh-Muamm'd. He died about 88 that is according to italians 1437 and according to those counting from the rise of Dareios in 546 b.c would be then 634. According to greeks 946.
See Kostbar,Zoltán,Böszörményi,Kozáry,Dobó,Kun,Kamil,Arsch,Blinker,Alexander,Kreiswirth,Luxemburg,Horpatzky,Itzkovits,Tevan,Deutsch,Iklódy,Kaminker,Slaninka,Csaba,Tamudo,Schwarz,Ótott,Dózsa,Katzander,Wanderstein,Hannofer,Balkar,Karacsy,Gyulay,Kenderesy,Gubicza,Ardo,Miszlay,Kulak,Kecskeméti,Wilner !