The proper use of denka and heika as honorifics

Is denka like other honorifics like san or sama where you would use the name then affix it? For example if there was a Princess Manako, "Manako-denka"? Or would that be incorrect?

"Greetings, Manako-denka." Is that right or totally weird/wrong?

Thank you!

by Efficient_Buy_1280

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