Aldonza Alfonso de León
1215–1266 ) was an illegitimate daughter of King Alfonso IX of León and his mistress Aldonza Martínez de Silva . 
<triplet> Alfonso IX of León <subj> Aldonza Martínez de Silva <obj> unmarried partner <triplet> Aldonza Martínez de Silva <subj> Alfonso IX of León <obj> unmarried partner