Below is a round-up of the birth announcements from British newspapers. Sources include a national paper (The Telegraph, The Times) and a broad range of local newspapers from across England, Wales, Scotland and Northern Ireland.
Sibling names are in brackets. No official surnames are included; any name ending in a surname is actually a middle name.
Boys:
Elliott Bernard
George Alexander (Elena)
Konstantin Grigory Sergeyevich
Rory Benedict (Arthur Robert)
Tyler Rae (Tamara)
Girls:
Eliza Cressida Rose
Isabella Celeste (Charlotte Aurora)
Ophelia Nicola Gabrielle (Rosie, Sienna Grace D. & Ivo Simon Nicholas)
Poppy Carolyn Mally
Poppy Olivia Florence (Henry & Alfred)
Sage Aurelia Babs
I cross-reference older BAs to find the full names of the siblings, however often they are missing (especially the eldest siblings, or for half-siblings) which explains why you will sometimes see something like: George Henry (Lucy, Emma & Jack Arthur). "Lucy" and "Emma" may well have middle names as well; I simply cannot find them online.