Original: Some years after divorcing Aelia Paetina, in 38 or early 39, Claudius married Valeria Messalina, who was his first cousin once removed and closely allied with Caligula's circle.
Simplified: Some years after divorcing Aelia Paetina, in 38 or early 39 AD, Claudius married Valeria Messalina, who was his first cousin once removed and closely allied with Caligula's circle.