2015 Pekao Szczecin Open – Doubles
Dustin Brown and Jan-Lennard Struff are the defending champions, but only Struff defended his title partnering Frank Moser.
Martin Anthamatten
Martin Anthamatten( born 12 September 1984) is a Swiss ski mountaineer and mountain runner.
Anthamatten was born in Zermatt.
He played ice hockey for National League B until 2005, and has been member of the national ski mountaineering team since 2007.
2013 Intersport Heilbronn Open – Singles
Björn Phau was the defending champion but he retired in the first round .< br>
Michael Berrer defeated Jan-Lennard Struff 7 – 5, 6 – 3 in the final to win the title.
2016 Pekao Szczecin Open – Singles
Jan-Lennard Struff was the defending champion but chose not to participate.
Alessandro Giannessi won the title after defeating Dustin Brown 6 – 2, 6 – 3 in the final.
2018 IsarOpen – Singles
This was the first edition of the tournament.
Pedro Sousa won the title after defeating Jan-Lennard Struff 6 – 1, 6 – 3 in the final.
Jan Lagoor
Johan, or Jan Lagoor( 1620 – 1660), was a Dutch Golden Age painter.
2014 Heilbronner Neckarcup – Singles
This was the first edition of the event.
Jan-Lennard Struff won the title, defeating Márton Fucsovics in the final, 6 – 2, 7 – 6.
W. Augustus Barratt
W. Augustus Barratt( 1873- 1947) was a Scottish- born, later American, songwriter and musician.
2019 Moselle Open – Doubles
Nicolas Mahut and Édouard Roger- Vasselin were the defending champions, but lost in the final to Robert Lindstedt and Jan-Lennard Struff, 6 – 2, 6 – 7,[ 4–10].
Jan-Lennard Struff
Jan-Lennard Struff( born 25 April 1990) is a German professional tennis player.
He reached his career- high ATP singles ranking of world No. 33 in July 2019.
In doubles, he achieved a career- high ranking of world No. 21 in October 2018.

Question: Who was born later, Martin Anthamatten or Jan-Lennard Struff?
Answer: Jan-Lennard Struff