Robin Arryn

Robin Arryn, also called 'Sweetrobin' by his mother, is the only son of Lord Jon Arryn and Lady Lysa Tully. Robert is named after King Robert I Baratheon. Robert is small, painfully thin for his age and has been sickly all his days. Some suspect that Petyr Baelish is his real father, but he has been raised by Lord Arryn with love due to his inability to father more children.