Complex sentence: The Prince was diagnosed with haemophilia as a young child, but, despite this, was a very cheerful and lively boy Who liked to play a lot.as Heinrich, Henry, grew older he became more aware of his condition.
Split into simpler sentences: The Prince was diagnosed with haemophilia as a young child, but, despite this, was a very cheerful and lively boy who liked to play a lot. As Henry grew older he became more aware of his condition.