The Trpimir's Gift is regarded as a pivotal document that sheds light on the early medieval history of Croatia. It is not only the first recorded mention of the Croatian name in domestic sources but also the oldest preserved monument of Croatian law. This artifact symbolizes the growing power of Croatian rulers and the path towards establishing an independent medieval state, namely the Kingdom of Croatia. The document contributes to understanding the socio-political landscape of the region during a time of considerable change and development.

In the 840s, under the reign of Duke Mislav and subsequently Duke Trpimir, significant changes occurred in the coastal region of Croatia, which was entering the fold of European Christian civilization. This era marked critical events such as the Christianization of the region and the assertive emergence of Croatian rulers on the Adriatic. The presence of the Trpimir's Gift gives insight into the legal frameworks and governance styles influenced by the Frankish court system, suggesting that despite being nominally under the supremacy of King Lothair, Duke Trpimir exercised a notable degree of autonomy.

The legacy of the Trpimir's Gift extends beyond its immediate legal implications; it provides a foundational understanding of the formation of the Croatian identity and statehood during medieval times. The document encapsulates the transition of the Croatian territory into a recognized political entity, with its rulers striving for legitimacy and acceptance within the broader European context. As such, its significance transcends purely historical documentation, embodying the aspirations and achievements of the early Croatian state.