  We report the discovery of two intermediate-mass brown dwarfs (BDs), TOI-569b
and TOI-1406b, from NASA's Transiting Exoplanet Survey Satellite mission.
TOI-569b has an orbital period of $P = 6.55604 \pm 0.00016$ days, a mass of
$M_b = 64.1 \pm 1.9 M_J$, and a radius of $R_b = 0.75 \pm 0.02 R_J$. Its host
star, TOI-569, has a mass of $M_\star = 1.21 \pm 0.03 M_\odot$, a radius of
$R_\star = 1.47 \pm 0.03 R_\odot$, $\rm [Fe/H] = +0.29 \pm 0.09$ dex, and an
effective temperature of $T_{\rm eff} = 5768 \pm 110K$. TOI-1406b has an
orbital period of $P = 10.57415 \pm 0.00063$ days, a mass of $M_b =46.0 \pm 2.7
M_J$, and a radius of $R_b = 0.86 \pm 0.03 R_J$. The host star for this BD has
a mass of $M_\star =1 .18 \pm 0.09 M_\odot$, a radius of $R_\star = 1.35 \pm
0.03 R_\odot$, $ \rm [Fe/H] = -0.08 \pm 0.09$ dex and an effective temperature
of $T_{\rm eff} = 6290 \pm 100K$. Both BDs are in circular orbits around their
host stars and are older than 3 Gyr based on stellar isochrone models of the
stars. TOI-569 is one of two slightly evolved stars known to host a transiting
BD (the other being KOI-415). TOI-1406b is one of three known transiting BDs to
occupy the mass range of $40-50 M_J$ and one of two to have a circular orbit at
a period near 10 days (with the first being KOI-205b).Both BDs have reliable
ages from stellar isochrones in addition to their well-constrained masses and
radii, making them particularly valuable as tests for substellar isochrones in
the BD mass-radius diagram.
