of which he was the most happy

[suprunp]

This old keyboard was a part of his new computer of which he was the most happy.
(The source - my imagination)

Is it possible that 'which' can denote 'keyboard' here?

Thanks.

[English Freak]

Yes, sure.

[bhaisahab]

This old keyboard was a part of his new computer of which he was the most happy.
(The source - my imagination)

Is it possible that 'which' can denote 'keyboard' here?

Thanks.

It's a very odd sentence. "This old keyboard was the part of his new computer with which he was most happy." This is a bit better, but still not very natural.

[suprunp]

I thought 'proud' but wrote 'happy'.