Who were the brothers of Richard I?

Richard I, also known as Richard the Lionheart, had several siblings, but his most notable brothers were John and Geoffrey. John, who became King John of England, is often remembered for his conflicts with Richard and his eventual unpopularity, leading to the signing of the Magna Carta. Geoffrey, the Duke of Brittany, was involved in various political intrigues during their reign. Richard also had a sister, Eleanor, who was the Queen of Castile.