I really like how the story is continuing and I’m happy for George and Agnes.
Since George was mentioned in the previous chapter as the head of the church and the Oxford movement (and since you said that there will be a famine in Ireland) some suggestions came to my mind.
How he will face famine will be a challenge in which the link between the new King (George) and the Irish will be tested, where it will be possible to understand if loyalty or xenophobia will win with the fierce British antipapism. The King will have to face a difficult situation having to decide how to relate to his Catholic subjects for two reasons. One is antipapism, the other is the fact that your nation will find itself interacting especially with Pope Pius IX .
Great Britain has a deeply rooted anti-Catholic sentiment (since the 16th century) as Catholics were seen not only as elements subversive to the state but also as possible "fifth column" (the Jacobin revolts and revolts sustained by Spain in the previous century). This feeling returned cyclically, especially when there was a threat that a Catholic power would become hegemonic on the European continent, and could threaten the freedoms of Protestant peoples. It must also be said that the Britons thought of Popery as a foreigner or Irish, since Ireland was the territory with a Catholic majority (English and Scottish Catholics kept a low profile).
Another important thing is that the Hanoverians held the English throne exclusively as Protestants, thanks to the agreements made after the glorious revolution and the Act of Settlement (1701) where it was declared that those who did not strictly observe the constitution were ousted (such as the various hesitations of George’s predecessors, the OTL, on Catholic emancipation or the union of Ireland to Great Britain) since they did not follow the rules of the kingdom.
Relations between the United Kingdom and the Holy See at this time were almost non-existent, by direct means, but since Britain and Prussia were the nation with a good Catholic minority not to continue having a diplomatic relationship was impossible, especially after the problems in Ireland. At the same time in Rome he was elected Pope Pius IX (famous in Europe for having liberal ideas. From his youth, on his return to South America, he wanted to start a restoration and enlargement of the ecclesiastical hierarchy that was successful following his mandate as Pope) which takes the Irish situation to heart.
Worthy of note is his encyclical (Praedecessores nostros of 25 March 1847) translated into three different languages (printed in thirty thousand copies sent throughout the Catholic world), where he invites Catholics and even kingdoms to help, pray and fund donations, food and non-food, to be sent to Ireland (these donations totaled fifteen thousand pounds, mainly from Italy , France and Austria). Then between 1950 and 1952 he undertook a vigorous reconstruction of the Catholic bureaucracy in Great Britain that replaced the seventeenth-century system of eight apostolic vicars, introducing new dioceses including Westminster.
In Ireland, famine has caused about four million deaths and displaced people. For an Irishman there were only two possibilities: immigrate or accept the "souperism" (Protestant association that in exchange for food aid demanded conversion). All the laws formulated in their assistance faced strong opposition both in parliament and between public opinion (dissolution of criminal laws and the reform of the Maynooth Act) because seen by the Protestant movements, Like the orange order, they went to prevent the full control of teaching, the protection of the home and the authority of the Protestant elite on Irish soil.
Another threat was, for these groups, the Oxford movement (calling for reforms within the English church) which in full anti-Catholic hysteria was considered to be on a par with a "fifth column" being able to put at risk, along with the actions of the Pope, the freedom and territorial and spiritual supremacy of the nation. Especially after the pastoral letter (Flaminian gate) of Cardinal Wiseman (later Archbishop of Westminster) and the sermons of Henry Newman.
This situation forced the government to introduce two laws: the Eglintoun clause (1848), in which the lords forbid priests to serve as representatives of the Pope, and the ecclesiastical bill titles (1851) introduced by Minister Russell, forbids the bishops of the Catholic Church to use place names. Russell sent Palmerston on a diplomatic mission to Italy to propose an exchange to the Holy See where in return for the Irish forcing them to swear allegiance to the crown, the British pledged to balance the influence of Austria and France in Italy. But in Rome they were not convinced that a Protestant power could put pressure on the Pope in exchange for a vague promise of help and then they recline the offer, not wanting to decide in the place of the Irish.
P.S. I have some curiosity, after George bought Balmoral Castle in Scotland he will buy one in Ireland to appease people?
We know of Queen Agnes' love of medicine, will it be the equivalent of Florence Nightingale in royal sauce?
I know that the royal princess has a serious problem, she is deaf-mute, since the Pope in 1850 made a unique law in Europe where it establishes the care and training of all disabled people, including deaf-mutes, this law has allowed the birth of very famous specialists. Will we see any at court?
What is happening in South Africa?
Thanks in advance.
And forgive me for the too long comment written with my bad English.