src: cdn.purple.fr
In genealogy and wills, issue refers to a person's lineal descendants.
Video Issue (genealogy)
Lineal descendants
"Issue" typically means a person's lineal descendants--all genetic descendants of a person, regardless of degree. Issue is a narrower category than heirs, which includes spouses, ancestors, and collaterals (siblings, cousins, aunts, and uncles). This meaning of issue arises most often in wills and trusts. A person who has no living lineal descendants is said to have died without issue.
Maps Issue (genealogy)
References
Source of article : Wikipedia