seat of honor, head of the table
父は上座の自分の席に着いた。
My father took his seat at the head of the table.
しばらくすると、上座に座れる人が誰なのか、はっきりしてきた。
After a while, it became clear who would get to sit in the seat of honor.
彼は食卓の上座についた。
He took the seat of honor at the table.
私はハーバー・ハウスの上座に座り、港務長を隣にして夕食をとっていた。
I sat at the head of the table at Harbor House, with the harbor master beside me, as we ate dinner.