Yngvarr dies when he’s like 16/17 on his second raid out with his brothers and father an everyone with an arrow through the chest
Gulbrandr dies after a really harsh winter when he is 6 and he gets really ill along with Eydis and Aleifr after they were put in charge of watching him so Porfridr could keep little Siegsteinn away from the sick
But both situations were so hard because both parent and siblings had to be there to watch hopelessly as their little ones died weh
Would be equally worse for when a twin dies weeeehh
Yngvarr and Gulbrandr for sure at some point die very young, before maturity
And one of the twins too but im not sure which one yet or how
Leone has a really frightening memory. She can just scan over something for a couple seconds before she’d have it memorized which is why she never has to look away from coding or hacking because its always just running and going through her head.