So his name is Gabriel, full name and title Prince Gabriel Carl Walther Duke of Dalarna youngest brother of Prince Alexander Erik Hubertus Bertil, Duke of Södermanland.

Sons of Prince Carl Philip and Princess Sofia. Fourth and fifth in line of the Swedish  succession. 

The Swedish monarchy and House of Bernadotte has increased in numbers starting in 1977 with the birth of King Carl XIV Gustafus and Queen Silvia’s first child Princess Victoria, duchess of Östergötland and future royal heir. Second child Prince Carl Philip, Born as Crown Prince in 1979. Third child Princess Madeleine, born in 1982. 

1. It wasn’t until the 23rd of February in 2012 that a future Crown Princess was born. 
2. The second grandchild was born on the 20th of February in 2014.
3. The third grandchild was born on the 15th of June in 2015. 
4. The fourth grandchild, and second in line of succession was born on the 2nd of March of 2016.
5. The fifth grandchild, fourth in line of succession was born on the 19th of April in 2016.
6. The sixth grandchild, fifth in line of succession was born on the 31st of August in 2017.