牟辛 / Mou Xin
牟辛 / Mou Xin appears in 《资治通鉴·周纪》18丨中国历史上第一例人头税 as the 齐国 grandee whom Qi kills in 346 BCE. The source gives no extended background, so the page keeps him as a compact annalistic notice.
His wiki role is to preserve the person named in the episode without overstating the evidence. In this source, Mou Xin mainly helps show how a single year under 周显王 can combine court killing, 鲁国 succession, and 卫国 status decline.