Mandalorians are a nomadic group of clan-based people that consists of multiple species (mostly humans) and gender (mostly male) that are bound by a common culture. Most Mandalorians are bounty hunters. Jango and Boba Fett are examples of Mandalorian bounty hunters. While some are not bounty hunters, they appear to be due to the actions they do.

You could find images of the Mandalorians on a Star Wars site. You could go to a fansite as well which would give you more options to find the wanted images.

Mandalorian ancestors stole the deathwatch saber during a chaotic lapse in power.

After you obtain the mask you have the choice to return it to one of the two people that you talked to at the start of the revanite quest.

Siege = Sieges.

Ex. In the Mandalorian Wars, the Mandalorians staged sieges in three separate Sectors of Republic Space simultaneously. (In Star Wars: Knights of the Old Republic)