Robin + 15 Characters allowed, children as long as both parents have been chosen.
Each character is gonna be using up to 3 seals, only 2 if they start in a promoted class (solo-classes count as promoted) and will have to end in a class that is a promotion from the original one (or the same for the promoted), for childs specify the skills gained from the parents, that said let's start:
MU:
1.Robin(+Luck-Skill) S Lissa Tactician>?>?>Grandmaster
2.Chrom S ? Lord>?>?>Great Lord
3.Lissa S Robin Cleric>?>?>?
4.Nowi S Donnel Manakete>?>Manakete
5.Donnel S Nowi Villager>?>?>?
6.Sully S Chrom Cavalier>Myrmidon>Swordmaster>Paladin
7.Panne S Vaike Taguel>?>Taguel
8.Vaike S Panne
9.Gregor Mercenary>Barbarian>Berserker> Hero.
10. Vaike Fighter>?>?>?
11.(Donnel Skill, Nowi Skill) Nah S Yarne Manakete>Dark Flier>Manakete
12.(Vaike Skill, Panne Skill)Yarne S Nah Taguel>Berserker>Taguel
13.
14.
15.
