 Princess Caroline 's unconventional behaviour led , in 1807 , to accusations that she had had sexual relations with other men since the separation . Caroline was caring for a young child , William Austin , who was alleged to be her child by another man . The Prince of Wales hoped that what was termed " the Delicate Investigation " would turn up evidence of adultery that would permit him to get a divorce , and forbade Charlotte to see her mother . The investigators did not interview Caroline or her purported lovers , but concentrated on Caroline 's servants . When the servants were asked if Caroline had appeared pregnant , some said yes , some no , some were uncertain , and others indicated the Princess was so overweight that it was impossible to tell . The servants could confirm no individual as a lover , though Caroline 's footman , Joseph Roberts , stated that the Princess " was very fond of fucking " . Charlotte was aware of the investigation . The ten @-@ year @-@ old was deeply hurt when mother and daughter caught sight of each other in the park , and Caroline , obedient to the Prince 's command to have no contact with Charlotte , pretended not to see her . To George 's bitter disappointment , the investigating committee found no evidence Caroline had had a second child , though it noted that the Princess 's behaviour was very much open to misconstruction . The King , who was fond of Caroline , had refused to see her during the investigation , but began to receive her again afterwards . After the conclusion of the Delicate Investigation , the Prince reluctantly allowed Charlotte to see her mother again , with the condition that William Austin not be a playmate . 
