《资治通鉴·陈纪·陈纪五》
穆后认陆令萱为母亲，以穆提婆为外家，称陆令萱为 太姬 。
后既以陆令萱为母，穆提婆为外家，号令萱曰 太姬 。
Empress Mu recognized Lu Lingxuan as her mother and Mutibo as her relatives, and called Lu Lingxuan the Grand Princess.
<s>[INST] Identify the key themes in this Classical Chinese text and explain them in English: 后既以陆令萱为母，穆提婆为外家，号令萱曰 太姬 。 [/INST] Empress Mu recognized Lu Lingxuan as her mother and Mutibo as her relatives, and called Lu Lingxuan the Grand Princess.</s>
Identify the key themes in this Classical Chinese text and explain them in English: 后既以陆令萱为母，穆提婆为外家，号令萱曰 太姬 。
user
Empress Mu recognized Lu Lingxuan as her mother and Mutibo as her relatives, and called Lu Lingxuan the Grand Princess.
assistant