Concord Dawn. Mandalorians took him in.
Just in case it was bugging you.
Long time Sheldonite, first time poster. Hiiiiii!
Yeah.. Jango was the son of some farmers on Concord Dawn. It's an arid world and everyone speaks like they're from New Zealand. His parents were killed when he was young and he was then raised by Mandelorians (a warrior race who act very similar to Klingons. Boba is the current leader of the Mandelorians). Mandalorian language is currently being developed into a real working language (like Ewok is now...I speak a little bit Ewokese...it's a fun language to learn :D)