Carl Grabow
Carl Wilhelm Louis( Ludwig) Grabow( 1790 – 19 January 1859) was a German entomologist especially interested in Coleoptera and Lepidoptera.
Grabow was born in Prenzlau.
He was an insect dealer in Dresden and a friend and associate of the younger Otto Staudinger.
He collected insects in Germany, Spain and Portugal.
Markus Weissenberger
Markus Weissenberger( born March 8, 1975) is an Austrian former footballer who played as a midfielder.
He is a younger brother of former Austria international player Thomas Weissenberger.
Roman Smishko
Roman Smishko is a retired Ukrainian professional footballer who played as a goalkeeper.
He is a younger brother of Ukrainian defender Bohdan Smishko.
Anton Shunto
Anton Shunto( born 31 May 1988) is a Belarusian professional footballer.
As of 2019, he plays for Molodechno.
He is a younger brother of Denis Shunto, who is a founder and former president of Krumkachy Minsk.
Miloš Zličić
Miloš Zličić( born 29 December 1999) is a Serbian football forward.
He is a younger brother of Lazar Zličić.
Alan Chipp
Alan Chipp( born 9 January 1937) is a former Australian rules footballer who played for the Fitzroy Football Club in the Victorian Football League( VFL).
He is a younger brother of politician Don Chipp.
Dmitri Varfolomeyev (footballer, born 1978)
Dmitri Nikolayevich Varfolomeyev( born 15 March 1978 in Leningrad) is a former Russian football player.
He is a younger brother of Sergei Varfolomeyev.
Otto Lowenstein
Otto Lowenstein (7 May 1889 – 25 March 1965) was a German-American neuropsychiatrist who was a native of Osnabrück.
He grew up in Preußisch Oldendorf, the son of Julius Lowenstein, a merchant, and Henriette Grunewald, into a Jewish family, and, when he was 19, began to study mathematics and philosophy at the University of Göttingen, before switching to medicine in another university.
In 1914 he received his medical degree from the University of Bonn, and following service as a military physician during World War I, he returned to Bonn as a neuropsychiatric assistant to Alexander Westphal.
While at Bonn, he was involved in the fields of pediatric psychiatry and experimental psychology.
He became Chief of Staff at the Neuropsychiatric Hospital of Bonn University (1920–1926).
He became Chief Neuropsychiatrist and Director of the State Hospital for Nervous and Mental Diseases and founded the pioneering Neuropsychiatric Hospital for children, serving as its head from 1926 to 1933.
This hospital continues to operate to this day and is believed to be the first specialized hospital of its kind in the world.
He was the Director of the Institute for Heredity in Neurology and Psychiatry, (Institut Fuer Neurologisch–Psychiatrische Erbforschung) from 1926 to 1933.
Together with his wife, Dr Marta (Grunewald
) Lowenstein, he conducted hundreds of interviews to develop family histories of neurological illnesses.
While in Germany he also began early research into pupillography as a means to detect and diagnose mental and neurological disorders including engineering the first machines and methodologies to assist in the study of the eye as a window to the brain.
In 1933, because of his Jewish ethnicity, he relocated to Switzerland in order to escape Nazi persecution, working as a neuropsychiatrist at the "Clinique La Métairie" in Nyon.
He was a member of the faculty of the University of Geneva, Department of Ophthalmology, and Director of the Pupillographic Laboratory from 1935 to 1939.
Under his leadership, the laboratory and the equipment pioneered there were invented and used in his researching the pupil.
In 1939 he emigrated to New York City, where he was associated with New York University and later Columbia Presbyterian Hospital.
In New York, he continued neuro-ophthalmological research with his research assistant Irene Loewenfeld.
As he was preparing final edits to a major compendium of his life work specializing on the pupil, he was taken ill with pancreatic cancer.
His work was entrusted to Dr Loewenfeld who had received her Ph.D. From the University of Bonn under Dr Lowenstein's mentorship.
The work was ultimately published in the 1990s.
He is remembered for his studies involving motion, size and functionality of the eye's pupil from a neuropsychiatric standpoint.
In Germany and America, he created laboratories containing specialized equipment for research of the eye's pupil.
He was particularly interested in the status of an individuals' pupil during specific emotional and psychological states, as well as the condition of the pupil during periods of fatigue and alertness.
In 1957, with Irene Loewenfeld, he built an "electronic pupillograph" that incorporated infrared technology.
This device was used to accurately measure and analyze the pupils' diameter, and was a forerunner to more sophisticated pupillographic instruments that were developed in later years.
Lowenstein and Loewenfeld's pioneer experiments and numerous publications on pupillary topics were a major factor in bringing pupillography into American neuro-ophthalmological medicine.
Recently, a psychiatric clinic for children called "Das Professor Otto Löwenstein Haus" was founded at the University of Bonn in Lowenstein's honor.
Jurgen Çelhaka
Jurgen Çelhaka( born 6 December 2000) is an Albanian professional footballer who plays as a midfielder for Tirana.
Vadim Vlasov
Vadim Nikolayevich Vlasov( born 19 December 1980) is a former Russian football player.
He is a younger brother of Dmitri Vlasov.

Question: Who is younger, Otto Lowenstein or Jurgen Çelhaka?
Answer: Jurgen Çelhaka