Collocations for proud - adj.

be, feel, look, seem, sound
make sb

extremely, fairly, very, etc.
enormously, especially, fiercely, immensely, inordinately, intensely (esp. BrE), particularly, terribly, tremendously
She was fiercely proud of family traditions and continuity.
He was tremendously proud of himself.

almost
He seemed almost proud of his practical incompetence.

justifiably, justly, rightly
quietly
He was not vain, but he was quietly proud of his achievements.

secretly
once
What has become of this once proud nation?

of
We are all really proud of you!

have every reason to be proud, have every right to be proud
All those involved have every reason to be proud of their achievement.

Proud is used with these nouns:
boast, bridegroom, father, grandparent, heritage, man, mother, mum, owner, parent, spirit, tradition