10th century - Probable construction of the Castle;
995 - Conquered by Almançor;
1220 - In the "Inquirições" [administrative enquiries] this territory is dominated by the Sousas and is designated by “Termo” [territory] of Ferreira and “Termo” [territory] of Aguiar, locating the administrative centre in the Castle of Aguiar de Sousa;
1258 - The Julgado of Aguiar de Sousa [jurisdiction of Aguiar de Sousa] is created;
1411- Foral charter by King D. João I;
1513 (25th November) - King D. Manual grants the Foral Charter to "Aguyar de Sousa";
1758 - Aguiar de Sousa belonged to the District of Penafiel;
1837 - Aguiar de Sousa is terminated as county and integrated in Paredes;
1999 - The owner was the widow of Mr. Amável Costa;
2004 - The Tower of the Castle of Aguiar de Sousa is included in the Route of the Romanesque of Vale do Sousa;
2008 - Works of general preservation and enhancement of the property in the scope of the Route of the Romanesque of Vale do Sousa;
2011-2013 - Cleaning work of the weed vegetation; review of lighting; rehabilitation of the access to the Tower; archaeological works in the surrounding area of the Tower, under the scope of the Route of the Romanesque.
2012 - The Tower of the Castle of Aguiar de Sousa is classified as Public Interest Monument.
