The majority of diseases that are a significant challenge for public and individual heath are caused by a combination of hereditary and environmental factors. In this talk, we introduce Lineage, a novel visual analysis tool, designed to support domain experts that study such multifactorial diseases in the context of genealogies.We argue that the problem of analyzing such diseases based on genealogical, clinical, and genetic data can be mapped to a multivariate graph visualization problem. Our main contribution is a novel visual representation for
tree-like, multivariate graphs, which we apply to genealogies and clinical data about the individuals in these families.