Who won Eurovision 1973?

Tu te reconnaitras by Anne Marie David, representing Luxembourg, won Eurovision 1973 with 129 points.

Where was Eurovision 1973 held?

Eurovision 1973 was held at Nouveau Théâtre in Luxembourg, Luxembourg on 7 April 1973.

17 countries participated in Eurovision 1973.

Notable developments in 1973 included a major rule change allowing songs to be performed in any language for the first time, prompting Finland and Sweden to sing in English, and the debut of pre-recorded backing tracks (first used by the United Kingdom).
Israel made its first appearance, becoming the first non-European country to compete, amid heightened security following the Munich attack.
Malta withdrew late after judging its submitted songs too weak, while Austria stayed out due to broadcaster–record label disputes.
Luxembourg won again, equalling France’s record four victories and setting a still-unmatched 80.63% of maximum possible points.
via Wikipedia

Helga Guitton

Country	Artist · Song	Pos	Pts
Luxembourg	Anne Marie David Tu te reconnaitras	1	129
Spain	Mocedades Eres tú	2	125
United Kingdom	Cliff Richard Power to All Our Friends	3	123
Israel	Ilanit Ey Sham	4	97
Sweden	Malta You Are Summer (You Never Tell Me No)	5	94
Finland	Marion Tom Tom Tom	6	93
Norway	Bendik Singers It's Just a Game	7	89
Germany	Gitte Hænning Junger Tag	8	85
Monaco	Marie Un train qui part	8	85
Portugal	Fernando Tordo Tourada	10	80
Ireland	Maxi Do I Dream	10	80
Switzerland	Patrick Juvet Je vais me marier, Marie	12	79
Italy	Massimo Ranieri Chi sarà con te	13	74
Netherlands	Ben Cramer De oude muzikant	14	69
Yugoslavia	Zdravko Čolić Gori vatra	15	65
France	Martine Clémenceau Sans toi	15	65
Belgium	Nicole & Hugo Baby, baby	17	58

Entry
Tu te reconnaitras	6	6	10	7	8	8	9		7	9	8	8	6	8	10	10	9
Eres tú	8	3	9	9	10	8	10	8	9	10	4	9		7	8	4	9
Power to All Our Friends	6	9	8	7	9	9	5	10	8	10	7	6	4	9	8		8
Ey Sham	6	6	5	7	7		7	8	7	6	5	5	4	6	6	5	7
You Are Summer (You Never Tell Me No)	4	8	4	5	5	5	5	6	5	6	8	4	7		9	7	6
Tom Tom Tom	9		4	6	5	5	2	6	5	5	6	5	6	7	6	9	7
It's Just a Game	5	8	6	6	3	9	5	7	7	3		5	6	3	7	3	6
Junger Tag	5	2	7		6	4	3	7	5	5	4	6	9	6	7	5	4
Un train qui part	3	6	5	4	6	4	8	6		5	3	2	6	4	5	9	9
Tourada	6	4	6	5	4	5	3	4	4	5	5		8	2	8	5	6
Do I Dream	7	3	4	4		4	5	6	6	6	6	2	7	5	5	5	5
Je vais me marier, Marie	3	4	2	4	7	3	4	6	5	8	7	3	7	3		7	6
Chi sarà con te	5	2	5	5	4	4		5	5	4	5	3	5	5	7	5	5
De oude muzikant	4	4	6	5	5	2	4	7	4		5	2	5	3	5	3	5
Gori vatra	3	5	4	4	5	4	2	4	5	4	2	3	8	2	6	4
Sans toi	3	4		4	5	2	2	3	5	5	4	2	5	5	4	5	7
Baby, baby		4	2	4	4	2	2	4	6	3	3	3	6	2	4	5	4