[Grammar] you conceded defeat so graciously

[Masseuse_Niagrass]

We were proud that you conceded defeat so graciously.

Would I be right to the words in bold makes it an independent clause and NOT an infinitive, surbodinating or cordinating?

 

[jutfrank]

I think that the conjunction that is working as a complementizer here, in which case I believe the clause in bold would be considered subordinate.