Lord Steffon Baratheon
Steffon was born in 0246 in Shipbreaker Bay.  He died in an accident or as a result of an injury, ship crashed while returning to Westeros, at the age of 32 in 0278 in Shipbreaker Bay.

 Lady Cassanna Estermont (Baratheon)
She died in an accident or as a result of an injury, ship crashed while returning to Westeros, in 0278 in Shipbreaker Bay.

 Lord Robert Baratheon

Robert Baratheon

Robert was born in 0263 in Storm's End, the Stormlands.

 Lord Stannis Baratheon
Stannis was born in 0264 in Storm's End, the Stormlands.  He died as a war casualty, fighting the Dornish, at the age of 35 in 0299 in The Narrow Sea.

 Renly Baratheon
Renly was born in 0277 in Storm's End, the Stormlands.  He died in an accident or as a result of an injury, during the riots in King's Landing, at the age of 21 in 0298 in King's Landing, the Crownlands.  He was buried in Highgarden, the Reach.