As Britain's oldest twins, Glenys and Florence have seen 19 prime ministers and two world wars. Building their houses next to each other when they started their own families, they were indeed inseparable and did everything together. In the end, they would also die a few weeks apart.

Born on Nov. 22, 1911, in Abertridwr, a mining village in south east England, the twins had a brother and two younger sisters and they would all live together.

"They were always close, throughout their whole lives," Florence's daughter Meryl told Wales Online.

"They did not speak much English until they started school. Welsh was their first language, but it stopped at their generation. They used to speak Welsh if there was something they didn't want us to know," added Meryl.

Glenys and Florence both married at 21 years old, to William Scrivens and John Davies, who worked as miners. Glenys and William were blessed with one daughter. After her husband's death, Glenys remarried when she was 60. Meanwhile, Florence and John had four children. John died when he was 50 and Florence never remarried.

Between them, they had 12 grandchildren and 19 great-grandchildren and they continued to live in Abertridwr with a door connecting their two kitchens, according to the Mirror.

In their golden years, the twins moved to Abermill Care Home, with only a couple of rooms separating them, according to the facility spokesperson who talked with ABC News.

"They liked being identical. They often dressed the same because they had very similar tastes. They would wear the same outfit in different colors," Meryl shared about her mother and aunt.

"If one had an accident, you could bet the other would too. One fell and broke her ankle and, a couple of weeks later, the other fell and broke her leg."

On April 23, Glenys passed away at the facility and was buried next to her husband. Twenty-seven days later, on May 20, Florence died. She was buried next to their parents, according to the Wales Online story.

On their 103rd birthday last November, the twins were given a party at the Abermill, surrounded by their loved ones, the staff and other residents. At 103, they were Britain's oldest identical twins and were in the "Guinness Book of World Records."