Complex sentence: Byrne married his teenage sweetheart Georgina Ahern, whom he met when they were about 12 years old, on 5 August 2003 at the Wicklow Register Office, Wicklow, County Wicklow.
Split into simpler sentences: Byrne married his teenage sweetheart Georgina Ahern, whom he met when they were about 12 years old. The two were married on 5 August 2003 at the Wicklow Register Office, Wicklow, County Wicklow.