The event is the first time the Sussexes and Cambridges have appeared in public together since Harry and Meghan opened up about their struggles in an emotional television documentary.
During the conversation with one of the mothers, Prince Harry showed interest in knowing how she managed two kids at a time.
Unsurprisingly, all eyes were on Prince William and Prince Harry, as this was their first royal engagement together since Harry's comments in a recent documentary confirmed they are "on different paths at the moment".
The Festival of Remembrance is a very important event for the royal family - both the Sussex and Cambridge families have been and will continue to meet with veterans and their families throughout the week - so a reunion of sorts had been on the card for a while, despite the rumoured rift.
Though some speculated as to why the couples were sitting so far apart, palace officials said there was nothing unusual about it, as they sat in similar seats past year, reports the Daily Mail.
Many senior royals joined the Queen at the remembrance service. This year's event celebrated the 75th anniversaries of the great battles of 1944, paying tribute to the British, Commonwealth, and Allied armies who fought them.
It will also celebrate the 100th anniversary of the Government Communications Headquarters (GCHQ) and pay tribute to the RFA Mounts Bay, which delivered supplies and aid to the Bahamas after Hurricane Dorian this year.
The ceremony is hosted by the Royal British Legion and commemorates those who have lost their lives in conflicts.