Kepler-276 is a Sun-like F-type star (about 0.84 solar masses, 6,105 K, 1.05 solar radii), 1,145 light-years from Earth. Kepler-276 b is a planet with 2.9 Earth radii, with an orbital period of 14.1 days, at 0.119 AU from its star, discovered in 2014 via transit. Kepler-276 c is a 0.05-Jupiter-mass companion, with an orbital period of 31.9 days, discovered in 2013 via transit. Kepler-276 d is a 0.05-Jupiter-mass companion, with an orbital period of 48.6 days, discovered in 2013 via transit. Mutual gravitational tugs between the planets can slowly reshape their orbits, preserving clues to the system's assembly.