A’Court commenced his diplomatic career at Naples in 1801. Under the aegis of his father’s friend the Duke of Portland he applied for promotion in 1805 and was disappointed to be rebuffed by Lord Mulgrave: Lords Hawkesbury and Harrowby had promised him ‘an opening at one of the German courts’. His father applied to Fox on his behalf, 30 Mar. 1806, after he himself had applied to Viscount Howick from Palermo for a German post. Nothing could be done for him, nor could his father persuade Howick to appoint him to Sardinia in 1807 until it was too late, the ministry having fallen. Portland then promised to do what he could for A’Court, who had returned to England, and in April 1807 he was named secretary to Lord Pembroke’s mission to Vienna, on the understanding that on its becoming an embassy he would act as minister plenipotentiary until Pembroke was replaced. The mission was futile and A’Court’s appointment recalled in favour of Robert Adair, his predecessor at Vienna, who was permitted to remain there. A’Court’s father indignantly complained of his having been thrown out of his profession and asked for a pension or a posting to Sardinia for him. Canning could offer neither, nor was Stockholm open to him, as his father hoped.
In May 1808 Portland received a further indignant letter from A’Court’s father because his son had not been appointed a commissioner of excise. The duke made his excuses and it was not until the end of the year that an opening came. Canning offered A’Court the interim appointment of minister to Sicily: no pension, no promise of future employment and only £600 until the end of the parliamentary session, when he would be replaced. A’Court declined. On 4 Mar. 1812 he appealed to Pembroke to nudge ministers on his behalf, as he was a stranger to them and ‘personal application therefore is out of the question’. He had contemplated a seat in Parliament on his father’s interest, but found that his father was disposing of his seats ‘to the best bidder’. He therefore sought diplomatic employment, not below the rank of minister, or at least some compensation for having been ‘turned adrift’, to help support his growing family. He obtained a mission to Malta.
A’Court informed Lord Liverpool on his return, 10 Oct. 1812, that he now desired ‘some employment at home’, adding that Lord Shaftesbury had offered him a seat in Parliament, to which his father invariably returned friends of the government. The prime minister promised him ‘every attention’.
