OED doesn't have an entry for this.

I want to say BRI-gen-tez /'brɪgəntez/, but wondering if it might be bre-GAN-tez /brə'gæntez/ or BRI-gants /'brɪgənts/.

I don't think I'll ever have a reason to say this word out loud but it would still be nice to know how it's pronounced.