"Are christenings allowed outside .. church buildings?
Baptisms and christenings normally take place in churches, although there is no absolute requirement for them to be held there.
The Book of Common Prayer, which is used by the Church of England and the Episcopal Church, states under the heading 'private baptism of infants' that: 'The Minister of every parish shall warn the people that without great cause and necessity they procure not their children to be baptized at home in their houses. But when need shall compel them so to do, then Baptism shall be administered on this fashion.'
In the UK, the Church of England states that 'unless there are very exceptional circumstances, a christening must always take place in a church, so it's usually not possible to have a christening at home, in a function room or outdoors'.
Is Lilibet the only Episcopalian in the Royal Family?
It is not believed that any other current members of the Royal Family have been baptised by the Episcopal Church.
Meghan was ..... confirmed into the Church of England in 2018.
The couple broke with a longstanding tradition by holding the baptism in the US, with royal babies normally christened in a Church of England church."