For Groh-Lenz there are 2 on Yasni with different names.
Among the most common last names on Yasni Groh-Lenz is on position 4525.
presumably the name comes from Polish. "Grohowa" - the "pea". The Häufigkait the name in East Germany and the Czech Republic suggest this origin.
(Sent from: Dr.Klaus Groh)
Lenz = spring, such as the song "Veronica, spring is here"
(Sent from: Lenz-Klein)