a foundation system including three or more suction buckets configured to be installed in the seabed, the three or more suction buckets being disposed at corners of an imaginary polygon, viewed in top view, to act as the foundation system or a part of the foundation system to carry an upper offshore structure supported on the seabed, the three or more suction buckets carrying a steel connector body configured to carry a payload, the steel connector body having a plurality of steel arms, all of the plurality of steel arms of the steel connector body extending from a central part of the steel connector body radially outwardly in a horizontal direction or at an angle of less than 20 degrees relative to the horizontal direction to each of the respective suction buckets, the steel arms being attached to the suction buckets at ends of the respective steel arms, the steel arms of the steel connector body having a height measured at a location of maximum height, between 0.75 and 1.5 times the diameter of one or more of a mast, a tower, and a monopole at a level of the steel connector body and having a width measured at a location of maximum width between 0.5 and 1.0 times the height measured at the location of maximum height,

wherein the cross-section of the steel arms of the steel connector body is box-shaped with an angular cross-section, and

wherein the steel arms of the steel connector body are flat plates, four flat sides of the steel arms including a top side, a bottom side, a left side, and a right side, of each of the arms connecting to each other via angular corners, the arms being respectively connected to the central part of the steel connector body at straight seams.