sentences:  This situation is complicated by the fact Leonor's family held lands and tenancies in Portuguese territory, which makes the thesis of Trás-os-Montes still viable.A member of the lineage of the Teles de Meneses, an important family originally from Tierra de Campos, Leonor's father Martim Afonso Telo de Meneses, a Portuguese nobleman, "mayordomo mayor" and alleged lover of Queen Maria de Portugal, the wife of King Alfonso XI of Castile, was assassinated in 1356 by orders of King Peter.Leonor's mother was Aldonça Eanes de Vasconcelos, daughter and heiress of João Mendes de Vasconcelos and Aldara Afonso Alcoforado.