《明史·列传·卷一百七十六》
皇长子出宫至其分封地，竑随去为讲官。
皇长子出阁，竑为讲官。
When the eldest son of the emperor left the palace and went to his enfeoffed land, Xing followed him and became his lecturer.
<s>[INST] Kindly elucidate the central themes in this passage in English: 皇长子出阁，竑为讲官。 [/INST] When the eldest son of the emperor left the palace and went to his enfeoffed land, Xing followed him and became his lecturer.</s>
Kindly elucidate the central themes in this passage in English: 皇长子出阁，竑为讲官。
user
When the eldest son of the emperor left the palace and went to his enfeoffed land, Xing followed him and became his lecturer.
assistant