John William Friso is the most recent common ancestor of what
Dutch monarchs family tree The following is a family tree for the Princes of Orange, a line which culminated in the Dutch monarchy with the accession of Prince William VI to the newly created throne of the Netherlands in 1815. Dates given are those of birth and death; for Princes of Orange (shown in bold), the intermediate date is the date of accession to the Princedom. By virtue of his marriage to Mary II of England, Prince William III, himself a grandson of Charles I of England, became King of England 1689–1702 (jointly with Mary II until her death in 1694) following the overthrow of his uncle and father-in-law James II of England in the Glorious Revolution. The family lineage is of note as John William Friso is the most recent common ancestor of all the current monarchs of Europe.
Panthera hybrid It is known that four of the five species of the "Panthera" genus, the exception being the snow leopard, "P. uncia", can hybridize with each other to produce numerous hybrids. Most hybrids would not survive in the wild due to the males being infertile, but a few (such as the Leopon) are fertile and have a chance of survival in the wild. However, recent mitochondrial genome research by Texas A&M University geneticist William Murphy et al. reveals that wild hybrids did also occur in ancient times. In snow leopards and lions, the mitochondrial genomes of both species was more similar to each other than to other Panthera species, indicating that at some point in their history, the female progeny of the male ancestors of modern snow leopards and female ancestors of modern lions interbred with male ancestors of modern snow leopards.