uhmm... that mordu menanggung, bear that merida's father was talking about... was it the menanggung, bear he just killed when merida was still young?? atau was it different??

Mordu was the oldest outta all the three Princes from the other kingdom and he was turned into a phantom menanggung, bear after he let pride, selfishness and anger get the better of him and those three elements have been keeping him alive for many years. And the menanggung, bear that attacked Merida's father was just a minor character menanggung, bear pretty much.

the person above me is incorrect. King Fergus literally calls the menanggung, bear at the beginning Mor'Du. Mor'Du ate Fergus' leg and obviously Fergus was unable to kill him. It is the same bear. He's kept alive sejak magic. So to answer your question, yes, it is the same bear, but your soalan is erroneous because Fergus did not kill him.