You might love love, but do you love it enough to wear a giant "LOVE" on the helmet you wear into combat? Because that's what the trusted Uesugi commander, Naoe Kanetsugu, was famous for!
I'm sure that letter should 
convince Ieyasu-dono to—
Esa carta conmoverá a Ieyasu-sama.
Tenho certeza que aquela carta
irá convencer o Ieyasu-dono—